Ok, case closed.

The comma-thing is only visual. My code wasn't working properly. But v18.5 did however change the visuals of columns, but I can live with that.

Ok, found out what's causing it, but it doesn't make sense to me.

I ran my code on my other machine, which has SSMS v18.4. My code works fine, and shows...

Yes, me too. Never had this issue before.

Hi again,

both Session and Server says "us_english".

Hi Jeff,

Language on Windows is also en-us. So can't be that either. Thanks for replying tho.

It is already set to 'English' so that's not the problem. But thanks tho for trying.