I am running tha absolute latest version of Windows 11 x64. Yesterday, I installed the latest version of Multiterm that I have access to: 2021 SR2 - 184.108.40.2064.
The termbase I tested contains 8619 entries, not unduly large by any means. If I try to filter terms or use wildcard characters in my searches, Multiterm simply hangs before it finally spits out an script error message. I do remember seeing this type of error years ago. I tried using a different Multiterm layout (Multiterm Classic instead of Default) and ta-da, the issue appears resolved. Is my Multiterm version simply too old for Windows 11 or is this a bug that has never been fixed?