Kneeboard mappings broken in FC3 aircraft

Some days ago my mappings for Kneeboard commands stopped working in FC3 aircraft.

When I look at the bindings, only "Kneeboard on/off" is mapped. When I map Next Page, Previous Page and Mark Position, they don't work. When I re-start the game, those mappings are empty again and those buttons unused!

Any ideas what's going on?

OK I've found a workaround but it's still quite badly broken. If I map the controls from the main menu (must be main menu) for one plane, and immediately fly that plane, the controls work.

But as soon as I try to map those controls on multiple planes, it randomly clears them on the others. Just Kneeboard controls, it's crazy!

is it something similar like here?

https://forums.eagle.ru/showpost.php?p=3714883&postcount=25

That sounds like it could be similar, definitely odd. I don't want to re-map all my planes though, I might try mapping completely different buttons for those functions first.

Did you fiddle with profiles too? Any lua/diff files overwriting?

Do you have any driver/sw for the HOTAS?

Find what you two have in common.

No I just resigned myself to the workaround as I'd rather spend my free time flying than de-bugging, but next time I have some time to dedicate to DCS I'll dig deeper.

It started when I expanded my collection and bought my first full module (Mig-21). In the Mig-21 I use the same bindings for kneeboard and they work fine, and don't get wiped/broken by me messing with them in FC3 planes, but that's when the issues started in the other planes. I did import some profiles too for new FC3 planes I had bought, didn't have conflicts so I assumed all was well.