Hi!
This seems to be something to do with language setting and new 196 update but since I did report problem here before 196 report thread was created I think I should reply here.
This decimator/thousand separator shows up as Γ when language setting is on Auto-detect. When I set it to English it shows like before 196 (separator is comma).
This thousand separator is much in numbers in the game (prices, tool details sheet, character sheet) so able to fix it that easy was nice but might still cause some other players problems.
So where ever that thousands separator data is fetched is shown wrong on my system when game language setting is on Auto-detect.