This topic is resolved through email. The main issue is that Moldex3D API does not have the permission to access project folder.

Hi Andrew,

If Moldex3D reading kernal can recongize the file, it will automatically switch to the correct format. However, it is still recommended to select the correct format in beginning.

Hi Andrew,

It happend in previous version but should not be in 2024R2. Does it  happen on all model or just one case?