Write permission on external SD

• /e/OS version: 3.1.2
• Device model(s): FP6

I have an external 256 GB SD Card that I installed on my device when it was on version 3.1.1. After updating, I don't have write permission on my SD, cannot create any folder/file nor edit anything. For example, music aplication Metro crashes when I try to edit metadata on songs I have on my SD.

Plugging the Fairphone to a computer by cable doesn't work neither, but extracting the SD card and pluggin it to the computer does work.