I dont think this is normal on AB …
the same is in SB and probably in RB mode
There has been a few mentions of this on the gaijin.net / issues support site (as well as the forums), but ones that have been seen to get closed as “not a bug”.
The problem is that the flaps are getting blocked once at landing flap rip speed. So no more combat flaps for Typhoon it seems.
Example: Community Bug Reporting System (that’s a link to a direct bug post)