Creo crashes when trying to open render studio

Whenever I attempt to open Render Studio, the program will stop responding. I am only having issues with a particular part. Any other part has worked fine. What can I do to fix this? I have to submit renders of this part for a project. I tried to leave the window open for 20+ minutes but it never loaded into render studio.

Using Creo Parametric 11.0.0.0

I am trying to upload the part, but it says that file type .1 is not allowed. What am I doing wrong? In file explorer, it just shows as .prt.

Thanks!