Error when saving: "An unknwon error occurred while accesing"

Hello!

I keep getting this error (see screen capture), it happens when using parts with configured dimensions. Upon trying to save the part, this error appears and prevents me from saving, I am usually able to resolve the issue by deleting the configured dimension. I do not understand why this is a problem, the configured dimensions doesn't seem to be causing any other problems (no errors in the equation dialog box, no rebuild errors...). Any help would be much appreciated. Thanks in advance.

Running Solidworks professional 2025, files saved localy.