Models disappearing after I re-open Shot Generator

[brainysmurf2]

Describe the bug
I open Shot Generator, import my models, and pose them. I then save that to the board.
Then, I open up Shot Generator again. My models are briefly there before blinking out of visibility. The thing on the left still says they're there, but I can't see them.

To Reproduce
Steps to reproduce the behavior:

1. Import custom model
2. Pose in shot generator
3. Save to board
4. Close shot generator
5. Re-open shot generator

Expected behavior
The character model should remain in Shot Generator.

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Browser: Firefox
• Version: 3.0

Additional context
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