14 days ago - FatsharkJulia - Direct link

This is a very unique issue and unfortunately it’s not likely to be something we can reproduce on our end.

Do you have another mouse you could try with?

Also, try a ‘Selective Startup’ to rule out any background applications interfering with your input:

  1. Press the Windows key
  2. Type ‘msconfig’ and select ‘System Configuration’
  3. On the ‘General’ tab, select ‘Selective Startup’
  4. Deselect ‘Load Startup Items’
  5. Reboot your PC
  6. Launch as normal, and see if the issue persists