[Muas]

They are both by Muas and I first had the Sea Hurricane. Then I got the openable canopy for the Spitfire Mk 1 also by him and now my Sea Hurris look like (...) Note that the marking switch is on.

There should be no issues between the two mods.

The yellow roundel is painted on the default skin to display an accurate look of the early british roundels, together with the markings on top. That's the british markins the ones are missing.

You got something there preventing to display the british roundels.

Do you have any markings progrem or mod installed? If so, check that.

Try to unistall the Spit MkI Openable Canopy and check the results on the Sea Hurri.

In dispair, reinstall both mods, but one at a time checking its results in between.