v2cache - files generation

Hi folks,

I recently found some strange behaviour with the v2cache files relating to my videos.
They are created from scratch once I open the project, which is good behaviour.
After closing and re-opening the project the files are generated once again from scratch.

Is this normal behaviour?

My specs:
Cubase Elements 9.5.10 64-Bit, 8GB RAM

Thanks for any advice and kind regards,