BUG deleted cache collaboration to all PC

Hello! I don't know if it's a bug or it could be a feature request. We're working on two workstation hp with a shared database on Qnap NAS. On Nas we've got all footage. On our workstation we've got our SSD used as cache. Those ssd aren't shared as our NAS and are mapped correctly inside every Davinci workstation. On collaboration environment, we found that if someone delete all cache file from "playback -- delete render cache -- all... --, after a new davinci reboot, EVERY workstation loses all rendered files even if the secondary workstation has got all cached files into the ssd.

Is this a bug or it could be a feature request to have more single user freedom to render or delete personal cache?

thanks and sorry for my bad technical english!


EDIT: this happen when the workstation that delete all the cache save the project and the secondary quit and reenter to the project...