Avogadro keeps crashing when I optimize geometry

I believe this to be a bug with Avogadro

Environment Information

Avogadro version: 1.99
Operating system and version: Windows 10 Home

Expected Behavior

I expected the molecular geometry to optimize quicker if I held down Ctrl+Alt+O.

Actual Behavior

It works for a bit but then crashes the software. It is tedious to manually go to Extensions → Optimize Geometry, only for it to run for less than a second then stop, even when the molecule isn’t fully optimized in its geometry.

Am I doing something wrong? Help appreciated.