Problem opening 2018 model file with C3D 2021

[Anonymous]

I get this message when i open my model file. Anyone have any ideas, get the same message when i try to open in C3D 2018.

[pendean]

>>>...i can't find where to change it now...<<<
The box here I believe https://forums.autodesk.com/t5/user/myprofilepage/tab/personal-profile:personal-info

[Anonymous]

Thank you Jeff, that fixed it.

[AllenJessup]

See if this works for you.