Adding a second USDZ crashes F3d

[gerroon]

Describe the bug
It seems like the window only loads one USD, consequent USD loads crashes the app

To Reproduce
Steps to reproduce the behavior:
Use the USDs in the zip
load one of them.
Drag and drop the other one once the window loads

Expected behavior
It shouldn't crash

System Information:

• OS: Win 11
• GPU and GPU driver: RTX 2070

F3D Information
Paste the content of f3d --version: bin\f3d.exe --version prints nothing
This is the zip F3D-2.5.1-220-g55e20f54-Windows-x86_64.zip

Downloads.zip

[mwestphal]

I reproduce using the binary on Linux, but not in my local build. Investigation needed.

[mwestphal]

I reproduce with ANY .usdz. .usd does not have this issue.

[mwestphal]

may be a duplicate of #1499