I have imported some 4K (UHD: 3.8K x 2.16K) files into Movie Studio 13. (Windows 10. 64bit) When I try to burn a Blu-ray disk, following the instructions in the help file, it appears to be rendering but then I get the message

“Filename:

Status: MUXComp:Validating error. --- Cannot load the schema for the namespace 'http://tempuri.org/ProjectDefinition.xsd' - Could not find file 'C:\Users\Ron\AppData\Local\Sony\Movie'..

Can anyone please tell me what I am doing wrong.

Yours, R C Walker.