Invert Kirkeby crashes Audacity 2.4.1 on Mac

Hello, I use the provided Audacity 2.4.1 for Mac on OS 10.15.7 (Catalina ) and my goal is to obtain an inverse filter to flatten the response of my system (vibration recording made with an accelerometer).
I've cut the track "convolved" holding the IR, obtaining a shorter and cleaner IR, about 10000 samples long. However when I apply the Invert Kirkeby tool to it, Audacity crashes more or less systematically...

the Ir is too long. You should cut it much shorter, typically 300 to 600 samples, containing just the direct sound.
And the inverse filter should be much longer than the IR, say 4096 samples...