Failed to set up temporary file Error

Mocha Pro 2021 was working fine. Suddently, it cannot analyze my videos. While I press Track Forwards (Track section), it stops in the middle of the analysis and an error window appears saying ‘Failed to set up temporary file’.

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Any help will be much appreciated.

Have you tried deleting the Mocha cache and the cache in your host? Have you tried turning off GPU tracking? Please let me know and I will be happy to help you.