On Windows 10 pro computer with 16 gig ram, Intel CPU i7 processor, .rti files made with RTI Builder do not open in RTI Viewer.
The files begin to open, but when the progress bar is about 20% finished, RTI Viewer returns an error
"[filepath] is invalid Internal format unknown"
Created .RTI files are not tiny, between 50 and 100 mbytes in size. RTI File is created without indication of error.
Same problem on 2 different computers.
Running as admin and running in Win7 compatibility mode does not help.