Here are two screenshots that show the situation on my end:
Windows finds all my controllers as expected:

X4 only finds 3 out of 4 - why?

Can we get some acknowledgement from the developers at least as to why some DirectX compatible devices are not found in X4, please? A guide on how to fix that would be useful, or at least an outlook that this is being worked on from the developers' side would be nice. This has to be a wider, known issue by now...
I had to map left/right steering to a silly hat switch on my TM Warthog throttle, because I cannot get my rudders to work in the game....

Thanks.