Hello...
@Titanic52
No... about the translation everything is fine...
first of all, check if you have in dictionary...
ROUTEWARNING~LONG_TUNNEL="......" I think you are missed that...
you are search with wrong way...
the real problem is in submenu "Long Tunnel" from the main menu "Route Warnings"...
so open the "route_warnings.zip" *.ui and *.lua and check/compare all menus for translation...