The problem is not the update from GIANTS. In other words the map needs to be updated for patch 1.10 like also a number of other mods. AFAIK Ray County is sofar the only one effected.
Viewing post in FS25 - Ray County, Missouri comments
That might be but I did not the problem until the Giants update to 1.9 and I don't have the problem now after I reverted back to 1.8. So I can continue with Ray County until the correction you are saying has been done. So basically you are saying Giants released an update that require maps to patch 1.10 and did not inform map creators, or at least, No Creeks of the need for the patch.