A2A planes simconnect not working

a2a stable of airplanes refuse to accept my simconnect versions, or perhaps I should say sometimes they work, but mostly not.  These are the freely downloadable simconnect versions available to everyone.  I have all of the simconnect versions.  I'd like to say I downloaded all from Just Flight recently, but I already had every one of the files.

It's only a2a planes.  No joy at a2a forums, I'm told it's my fault for still using FSX/A.  That may or may not be since I'm now using Windows 11, but that's now how I purchased the planes.

These planes worked perfectly with FSX/A when I was using Windows 7 64.

I don't have the time to invest in another (newer) simulation, so that's not an option.