Timeline causes IOS app to crash when adding it

I have a blank app one with scene, camera direcional light and i'm building for IOS using the latest 2018.4.5 version
when i don't have timeline in the scene, it runs,
when i add timeline to any scene (even one that's not the first one running) the game crashes on boot on the first frame, with an obscure error.

Thread 0 (crashed)
0 opc-Test 0x000000010556b5c8 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
1 opc-Test 0x000000010556b570 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
2 opc-Test 0x000000010556b39c <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
3 opc-Test 0x00000001051ef580 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
4 opc-Test 0x00000001051ef5dc <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
5 opc-Test 0x00000001051ef7ec <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
6 opc-Test 0x00000001056a36e8 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
7 opc-Test 0x0000000104a5a2f4 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
8 opc-Test 0x0000000104a5a1e0 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
9 QuartzCore 0x00000001979f4f90 CA:isplay:isplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long)
10 QuartzCore 0x0000000197abeb10 display_timer_callback(__CFMachPort*, void*, long, void*)
11 CoreFoundation 0x00000001935d8a8c __CFMachPortPerform
12 CoreFoundation 0x00000001935ff690 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__
13 CoreFoundation 0x00000001935feddc __CFRunLoopDoSource1
14 CoreFoundation 0x00000001935f9c00 __CFRunLoopRun
15 CoreFoundation 0x00000001935f90b0 CFRunLoopRunSpecific
16 GraphicsServices 0x00000001957f979c GSEventRunModal
17 UIKitCore 0x00000001bff73978 UIApplicationMain
18 opc-Test 0x0000000104a52530 <symbols missing for uuid: 11c27bc301763c008ee56e718314cd81>
19 libdyld.dylib 0x00000001930be8e0 start