Cpu 100% after using 'find' in xmind

Hello,

System: Ubuntu 22.4, 8cpu, 16Gig mem.

I am experiencing it for quite some time now that when I use the 'find/search' function in Xmind that my cpu is going wild. Cpu is at a constant 100% and my system is blazing...

After shutting down Xmind the (I quess the find-process) utilization of the cpu stays at a 100%. I have to kill it manually after which all is fine, until I use the 'find/search' again.

Do you have any suggestions? (besides not using 'find/search').