You can suspect a sound driver problem.
Have a look to the topic I posted some days ago and called "Stange pause", please.

Did your problem occur after a Windows 10 update or after the install of a new NVidia driver ?

It seems that my problem is now solved after a reinstall of the RealTek driver (0009-64bit_Win7_Win8_Win81_Win10_R282).
(Problem happened just after an Windows update to 1909.)

Hi, After a complete installation of P3D 4.5 HF2 with Windows 10 moved to v. 1909, I have strange problem of pause. If I click on pause key during a flight and click again to continue the flight, FPS drop to 1 or 1.1 (and no sound). Same if I go to the menu (to modify an option) and come back to the...

When I select a saved flight, I appreciate to return to the scenario screen before to launch the saved flight in order to be able to modify the date and hour. The "visual bug" should become an option in 4.6.

I have tested PD v.4.3 with another joystick and there is no problem of throttle.
It is a pur coincidence if my joystick broke down few days after I have installed v. 4.3.
Administrator can delete this post.
(Sorry for my poor English)

Throttle lever is shaking extremely rapidly.
Has my T.Flight Stick X suddenly broken during a flight ?
Calibrate device : all axis calibration range are ok except "slider" moving extremely rapidly.
No problem with joystick controllers currently disabled.

No problem during some flights after upgrading to v. 4.3.
Suddenly on air, the gas lever has moved extremely rapidly.
The problem is solved if the joystick is desactivated.
Bug ?

Same here 3 days ago with Washington X from Drzewiecki Design. I was completely lost because I have installed the scenery at least 2 months before. A complet desintall/reinstall of this scenery manually solved the problem.
Thank you st1322 for your post.

Hi, I fly VFR over photosceneries which are the best to learn like in real. The level of detail radius, limited to 6.5, is too short to get good images. Same result if I change manually to 9.5 in Prepar3D.cfg. I hope LM will do something to improve P3Dv4 and avoid blurring in short/middle distance b...