[BUG] HUD Randomly Appears After Exiting Menus + Audio Stutters Since SU4B

Description of the issue:
Since the SU4B update, two recurring issues have appeared:

  1. The HUD randomly reappears after backing out of in-game menus (such as pause, settings, or ATC). This happens even when flying aircraft without a HUD or when it was previously disabled.

  2. Audio stuttering and crackling occurs intermittently during flight, most noticeable after a few minutes in the cockpit or when switching views.

These issues were not present before SU4B and occur consistently across multiple aircraft and locations, both default and add-on.


FREQUENCY OF ISSUE:
Intermittent — occurs almost every session after opening and closing in-game menus.


REPRODUCTION STEPS:

  1. Launch Microsoft Flight Simulator (SU4B).

  2. Start a flight in any aircraft (e.g., A320neo).

  3. Open the pause or settings menu, then return to the cockpit.

  4. Observe that the HUD may appear unexpectedly.

  5. Continue flying — audio stutters begin to occur intermittently.


YOUR SETTINGS:

  • No third-party mods or add-ons active.

  • Tested in both normal and Safe Mode.

  • Latest NVIDIA drivers installed (clean install).

  • Rolling cache cleared and rebuilt.

Peripherals used:

  • Standard yoke and throttle setup (no impact on issue).

[PC Only] Developer Mode:

  • Not active. No changes made to Developer Mode.

[PC Only] GPU (Graphics Card):

  • NVIDIA RTX 5080

[PC Only] Other relevant PC specs:

  • AMD Ryzen 7 7800X3D

  • 64 GB DDR5 RAM

  • NVMe SSD storage

  • Windows 11 Latest version


MEDIA:

Please do not report 2 issues in the same report.

For the HUD issue see: [1.6.21.0 Regression] Internal/External HUD issues
For the audio issue see: Audio Stutters In Menu / Globe And On Ground / During Flight