Playing the Taiwan campaign on the Red side and it keeps generating a repair mission to a bridge that is not even broken.

Transport takes off, navigates to bridge, mission completed, return to the base and then starts over again.

Very Strange!

I have never seen a repair mission to anything other than an airfield, military base, farp before.

The game will generate occasional bridge repair runs but I don't know what governs the process; try having a look in the AI.log file to see what it's doing in a luttle more detail. As a suggestion, why not try actually damaging the bridge (i.e. bringing down one or more spans), to change its state? Maybe a further status update will break it out of the loop.p