Hello. I can confirm I am also getting issues zooming. I noticed it in several parts of my flight. I can reproduce it every time if I "preview" effects such as Reverse Thrust, Overspeed, Touchdown Main. Previewing touchdown front does NOT affect the zoom which is interesting.
If you preview touchdown MAIN while constantly trying to zoom in and out you'll see that the zoom stops working each time the view shakes then as soon as it stops shaking, zoom works again. Just leave the preview running and you will notice and easily recreate this bug.
One more way to repeat the bug is to enable "engine vibration" effect. Set parking brake and just try to zoom while increasing throttle will lead to unable to use zoom. Once I set back to idle I can zoom again.
Hope this helps to track down this really nasty bug.
