True and wise suggestion, this too.
But, on my side at least, I tried ALL the hints in all the other related topics here, but no one succeeded.
This alone is far more than the whole all what occurred to me in more than 20 years of simulated flight. Disappointing, sad to say that.
So, if this weird and uncommon issue continues, my last chance will be to format all, reinstalling Windows and DCS after, keeping my fingers well crossed and wishing for the best.
With best regards.