(Case 1034172) PackedMemorySnapshot: "typeDescriptions" array is empty

Using the UnityEditor.MemoryProfiler API to capture a PackedMemorySnapshot, does not contain type descriptions. The snapshot.typeDescriptions array is empty always.

This issue is very important to me, as I develop a Memory Profiler for Unity, called Heap Explorer. This issue causes every tool that uses the UnityEditor.MemoryProfiler API to stop working.

A project to reproduce the issue is attached to Case 1034172.

Reproduce

• Open user attached project
• Click Mainmenu > BugReport > Open TestCode Window
• Click "Capture Memory" button

Observe the text shows "typeDescriptions.Length = 0".

Expected
PackedMemorySnapshot.typeDescriptions should not be empty.

A fix would be highly appreciated. Thank you in advance.

 

QA was able to reproduce the issue, thanks QA! It's now available in the public issue tracker:
https://issuetracker.unity3d.com/is...o-when-taking-a-packedmemorysnapshot-snapshot

It turned out that a lot more Unity versions are affected by this bug, not only the latest beta. Even 2017.4 is affected, so nobody is able to capture a memory snapshot with any tool using 2017.4 for example. I would very much appreciate if this can be fixed soon.

 

+1. Fix this please. Can't do memory analysis on iOS (snapshot callback never fires), OR editor (typedescriptions empty). Upgraded from 5.6 to 2017.4 and now can't do memory analysis.

 

Any plans to backport it to the LTS (2017.4) ?

 

The report has been marked as "Not Reproducible", even though QA was able to reproduce the issue:
https://issuetracker.unity3d.com/is...o-when-taking-a-packedmemorysnapshot-snapshot

Sooo... is this really going to be fixed in b9/10 or just "we don't have a problem because can't reproduce now"?

 

That's great, thank you!