I have a solution integrated with NAV (we are using Live integration 1.x).
The solution was working pretty good on DW 9.9.8 but after upgrading to 9.12.7 we are noticing an error for some users:
Culture ID 4096 (0x1000) is a neutral culture; a region cannot be created from it.
Parameter name: culture
Some users can log in without issues but some other users are getting this error.
Any idea why?