Dimension error in blocks in latest SR


Installed the latest SR and suddenly some of the symbols in our template started to act strange.
File attached is made in Rhino 5 where the problem doesn’t occur.
Opening it in Rhino 6 will show another result.
This problem wasn’t there in SR3 but since I don’t have that version anymore I had to make it in Rhino 5

Please have a look at it an help me get an workaround becaurse we have about 2000 articles that everytime from today opened will have the errored block dimension.

Best regards
Dim error.3dm (32.3 KB)