The client crashes when trying to modify the rosters of running breakout rooms

[antobinary]

Describe the bug
We had a meeting where breakouts were running (I was moderator, presenter). When I went on to try to modify the breakout rosters/pools, my client crashed.

To Reproduce
Steps to reproduce the behavior:

Not currently able to reproduce it. However, I have a screenshot from when it happened.

1. Join a meeting
2. Create breakouts
3. Open the breakouts panel. Select 'Manage users'

Expected behavior
The modal for managing breakouts should open

Actual behavior
In my case the client crashed (see below for the error)

Screenshots

BBB version:
BigBlueButton 3.0.0-alpha.6

[ramonlsouza]

@antobinary I tried to reproduce it, but the crash did not happen... please include more information about how to reproduce