BTT crashes after posting to Imgur

Note: Before bug reporting, please make sure you have tried the latest (alpha) version of BetterTouchTool and that you have already tried to restart your system :-). If you encounter a crash, please attach a crash log from the macOS Console.app from the "User Diagnostic Reports" section.

Describe the bug
BTT crashes after successfully posting an annotated screenshot to Imgur

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
Not applicable

Screenshots
Not applicable

Device information:

  • Mac mini (M1, 2020)
  • macOS version: 12.0 Beta (21A5294g)
  • 3.579
    Additional information (e.g. StackTraces, related issues, screenshots, workarounds, etc.):

BetterTouchTool_2021-08-05-155034_Mikes-mini-2.crash (988 Bytes)

BetterTouchTool_2021-08-05-160856_Mikes-mini-2.crash (988 Bytes)