I updated to Version 6 (6.29.20210.08522, 2020-07-28) and 2 issues happened when I opened the file:
All layers turned on in all details. This is a HUGE issue for me as I now have to go back through 60+ pages and manually hide layers. This has never happened before.
All leaders show up as BOLD font. This was an issue in the early betas and first releases of Rhino 6 but I haven’t seen it in awhile.
If sending you the file would help, I can share it with the McNeel team privately.
Thanks in advance.