Crash/Hang occasionally but consistently when changing resolution/windowed/fullscreen

Unity: 2017.2.1p1
Platform: Osx - 10.13.3 - iMac 2013
Processor: intel core i5
Graphics: GTX 775M 2 GB

Reproduction Process:
In the settings menu of the game with have a resolution dropdown and a fullscreen/windowed checkbox. If I play with this for a while changing resolution and changing windowed/fullscreen I will encounter this crash/hang. It results in the game window blanked to black and not responding to input.

Sometimes it takes 30 resolution/fullscreen/windowed changes and sometimes it takes 3 or 4 changes for it to occur but if I go for long enough it's always reproducible. I have only been testing with it set to 30fps on the one machine.

The code to change the resolution is:

Screen.SetResolution(
resolution.width, resolution.height, Screen.fullScreen, resolution.refreshRate);
*or*
Screen.fullScreen = isFullScreen;

The code is called from a TMP_Dropdown.DropdownEvent onValueChanged event or a
UnityEngine.UI.Toggle onValueChanged event.


Here are three examples of the crash/hang in the player log. They are similar but not identical.
---

Receiving unhandled NULL exception
Obtained 29 stack frames.
#0 0x000000a6af868f in objc_loadWeakRetained
#1 0x000000a6af9c8d in objc_loadWeak
#2 0x000000919f2efa in __32-[NSOpenGLContext clearDrawable]_block_invoke
#3 0x0000009148a3c0 in NSPerformVisuallyAtomicChange
#4 0x0000009160874b in -[NSOpenGLContext clearDrawable]
#5 0x0000000035f363 in -[PlayerWindowView setContext:]
#6 0x00000000361e61 in ScreenManagerOSXStandalone::SetResolutionImmediate(int, int, bool, int)
#7 0x000000007a2024 in ScreenManager::SetRequestedResolution()
#8 0x000000009d287a in InitPlayerLoopCallbacks():ostLateUpdateUpdateResolutionRegistrator::Forward()
#9 0x000000009d3c32 in PlayerLoop()
#10 0x0000000035d936 in -[PlayerAppDelegate UpdatePlayer]
#11 0x0000009538f520 in __NSFireTimer
#12 0x00000093954873 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
#13 0x000000939543e8 in __CFRunLoopDoTimer
#14 0x00000093953e5b in __CFRunLoopDoTimers
#15 0x0000009394ba9b in __CFRunLoopRun
#16 0x0000009394aae1 in CFRunLoopRunSpecific
#17 0x0000009394a84a in CFRunLoopRunInMode
#18 0x00000092f4a42b in RunCurrentEventLoopInMode
#19 0x00000092f4a152 in ReceiveNextEventCommon
#20 0x00000092f49e2b in _BlockUntilNextEventMatchingListInModeWithFilter
#21 0x00000091371cc5 in _DPSNextEvent
#22 0x00000091ae3c48 in -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
#23 0x00000091ae3115 in -[NSApplication(NSEvent) nextEventMatchingMask:untilDate:inMode:dequeue:]
#24 0x00000003400c10 in -[NSApplication(SteamOverrideNextEvent) steamhooked_nextEventMatchingMask:untilDate:inMode:dequeue:]
#25 0x00000091366c19 in -[NSApplication run]
#26 0x00000091338cce in NSApplicationMain
#27 0x0000000035d257 in PlayerMain(int, char const**)
#28 0x000000a75a66e1 in start

---

Receiving unhandled NULL exception
Obtained 29 stack frames.
#0 0x000000a6af868f in objc_loadWeakRetained
#1 0x000000a6af9c8d in objc_loadWeak
#2 0x000000919f2efa in __32-[NSOpenGLContext clearDrawable]_block_invoke
#3 0x0000009148a3c0 in NSPerformVisuallyAtomicChange
#4 0x0000009160874b in -[NSOpenGLContext clearDrawable]
#5 0x0000000035f363 in -[PlayerWindowView setContext:]
#6 0x00000000361e61 in ScreenManagerOSXStandalone::SetResolutionImmediate(int, int, bool, int)
#7 0x000000007a2024 in ScreenManager::SetRequestedResolution()
#8 0x000000009d287a in InitPlayerLoopCallbacks():ostLateUpdateUpdateResolutionRegistrator::Forward()
#9 0x000000009d3c32 in PlayerLoop()
#10 0x0000000035d936 in -[PlayerAppDelegate UpdatePlayer]
#11 0x0000009538f520 in __NSFireTimer
#12 0x00000093954873 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
#13 0x000000939543e8 in __CFRunLoopDoTimer
#14 0x00000093953e5b in __CFRunLoopDoTimers
#15 0x0000009394ba9b in __CFRunLoopRun
#16 0x0000009394aae1 in CFRunLoopRunSpecific
#17 0x0000009394a84a in CFRunLoopRunInMode
#18 0x00000092f4a42b in RunCurrentEventLoopInMode
#19 0x00000092f4a152 in ReceiveNextEventCommon
#20 0x00000092f49e2b in _BlockUntilNextEventMatchingListInModeWithFilter
#21 0x00000091371cc5 in _DPSNextEvent
#22 0x00000091ae3c48 in -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
#23 0x00000091ae3115 in -[NSApplication(NSEvent) nextEventMatchingMask:untilDate:inMode:dequeue:]
#24 0x00000003400c10 in -[NSApplication(SteamOverrideNextEvent) steamhooked_nextEventMatchingMask:untilDate:inMode:dequeue:]
#25 0x00000091366c19 in -[NSApplication run]
#26 0x00000091338cce in NSApplicationMain
#27 0x0000000035d257 in PlayerMain(int, char const**)
#28 0x000000a75a66e1 in start

---

Receiving unhandled NULL exception
Obtained 32 stack frames.
#0 0x000000a6af411d in _cache_getImp
#1 0x000000a6af6eee in lookUpImpOrNil
#2 0x000000a6af6e97 in class_getMethodImplementation
#3 0x000000a6af8701 in objc_loadWeakRetained
#4 0x000000a6af9c8d in objc_loadWeak
#5 0x000000919f2efa in __32-[NSOpenGLContext clearDrawable]_block_invoke
#6 0x0000009148a3c0 in NSPerformVisuallyAtomicChange
#7 0x0000009160874b in -[NSOpenGLContext clearDrawable]
#8 0x0000000035f363 in -[PlayerWindowView setContext:]
#9 0x00000000361e61 in ScreenManagerOSXStandalone::SetResolutionImmediate(int, int, bool, int)
#10 0x000000007a2024 in ScreenManager::SetRequestedResolution()
#11 0x000000009d287a in InitPlayerLoopCallbacks():ostLateUpdateUpdateResolutionRegistrator::Forward()
#12 0x000000009d3c32 in PlayerLoop()
#13 0x0000000035d936 in -[PlayerAppDelegate UpdatePlayer]
#14 0x0000009538f520 in __NSFireTimer
#15 0x00000093954873 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
#16 0x000000939543e8 in __CFRunLoopDoTimer
#17 0x00000093953e5b in __CFRunLoopDoTimers
#18 0x0000009394ba9b in __CFRunLoopRun
#19 0x0000009394aae1 in CFRunLoopRunSpecific
#20 0x0000009394a84a in CFRunLoopRunInMode
#21 0x00000092f4a42b in RunCurrentEventLoopInMode
#22 0x00000092f4a152 in ReceiveNextEventCommon
#23 0x00000092f49e2b in _BlockUntilNextEventMatchingListInModeWithFilter
#24 0x00000091371cc5 in _DPSNextEvent
#25 0x00000091ae3c48 in -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
#26 0x00000091ae3115 in -[NSApplication(NSEvent) nextEventMatchingMask:untilDate:inMode:dequeue:]
#27 0x00000003400c10 in -[NSApplication(SteamOverrideNextEvent) steamhooked_nextEventMatchingMask:untilDate:inMode:dequeue:]
#28 0x00000091366c19 in -[NSApplication run]
#29 0x00000091338cce in NSApplicationMain
#30 0x0000000035d257 in PlayerMain(int, char const**)
#31 0x000000a75a66e1 in start

---

Receiving unhandled NULL exception
Obtained 29 stack frames.
#0 0x000000a6af868f in objc_loadWeakRetained
#1 0x000000a6af9c8d in objc_loadWeak
#2 0x000000919f2efa in __32-[NSOpenGLContext clearDrawable]_block_invoke
#3 0x0000009148a3c0 in NSPerformVisuallyAtomicChange
#4 0x0000009160874b in -[NSOpenGLContext clearDrawable]
#5 0x0000000035f363 in -[PlayerWindowView setContext:]
#6 0x00000000361e61 in ScreenManagerOSXStandalone::SetResolutionImmediate(int, int, bool, int)
#7 0x000000007a2024 in ScreenManager::SetRequestedResolution()
#8 0x000000009d287a in InitPlayerLoopCallbacks():ostLateUpdateUpdateResolutionRegistrator::Forward()
#9 0x000000009d3c32 in PlayerLoop()
#10 0x0000000035d936 in -[PlayerAppDelegate UpdatePlayer]
#11 0x0000009538f520 in __NSFireTimer
#12 0x00000093954873 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
#13 0x000000939543e8 in __CFRunLoopDoTimer
#14 0x00000093953e5b in __CFRunLoopDoTimers
#15 0x0000009394ba9b in __CFRunLoopRun
#16 0x0000009394aae1 in CFRunLoopRunSpecific
#17 0x0000009394a84a in CFRunLoopRunInMode
#18 0x00000092f4a42b in RunCurrentEventLoopInMode
#19 0x00000092f4a152 in ReceiveNextEventCommon
#20 0x00000092f49e2b in _BlockUntilNextEventMatchingListInModeWithFilter
#21 0x00000091371cc5 in _DPSNextEvent
#22 0x00000091ae3c48 in -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
#23 0x00000091ae3115 in -[NSApplication(NSEvent) nextEventMatchingMask:untilDate:inMode:dequeue:]
#24 0x00000003400c10 in -[NSApplication(SteamOverrideNextEvent) steamhooked_nextEventMatchingMask:untilDate:inMode:dequeue:]
#25 0x00000091366c19 in -[NSApplication run]
#26 0x00000091338cce in NSApplicationMain
#27 0x0000000035d257 in PlayerMain(int, char const**)
#28 0x000000a75a66e1 in start

 

This has got to be a Unity bug. I appreciate you sharing it with us here, but please be sure to file an official bug report with Unity too.

 

Same problem. Tested on three macs, on two this happens at every start, instantly crashing application. On third it happens at 40% of launches.
Any solutions?