Navigation Invoker AI Actors are marking every map "Dirty" on load for 4.27.2 Source Build

Hey guys…
I just updated to “UnrealEngine-4.27.2-release” source build and noticed that whenever a “NavigationInvoker AI Actor” is placed in a map, that map is always instantly marked “Dirty” on map load requesting the map constantly to be (re)saved…

Earlier Source Build versions prior to 4.27 did not do this for me…

Now in the 4.27 release notes it says:

" Bug Fix:

  • Fixed an issue where the Navigation Mesh was making the current map “dirty” on load without any user action."

Any help and hints would be much appreciated.