New-ish to Gimp ? What version are / have you been using ?
For .pcd format - there are a number of programs that use the .pcd file suffix - point cloud data / Kodak photo disk (as this https://www.gimpusers.com/forums/gimp-us...2-2-or-2-4 )
..and I do not suppose either of those apply.
A quick search and:
"Popular choices for painting iRacing liveries include Adobe Photoshop, GIMP, and Photopea." Which probably implies Photoshop .psd format.
The other problem is OSX Has it updated itself and dumb security is blocking your work ? I do not know, I do not use OSX.
For .pcd format - there are a number of programs that use the .pcd file suffix - point cloud data / Kodak photo disk (as this https://www.gimpusers.com/forums/gimp-us...2-2-or-2-4 )
..and I do not suppose either of those apply.
A quick search and:
"Popular choices for painting iRacing liveries include Adobe Photoshop, GIMP, and Photopea." Which probably implies Photoshop .psd format.
The other problem is OSX Has it updated itself and dumb security is blocking your work ? I do not know, I do not use OSX.