Unable to open the file for writing

Hey, 

using Unity Engine with rider 2025.1.4.

Sometimes I get this error:

This happens when there is another file in the folder of the script I am trying to save, a “CS file”, which apparently gets created by rider.

I have to delete this file manually to save again, but sometimes it just creates this file over and over again and I can't save.

Anything I can do? Thanks!