The sound dissapeared when i switched to the spitfire. If you look at the log, you can see there is an error at sound: bufferEvent has timed out. Maybe thats the problem.
2021-10-21 19:27:30.664 INFO EDCORE: Loaded D:/DCS World/Mods/aircraft/SpitfireLFMkIX/bin/SpitfireLFMkIX.dll
2021-10-21 19:27:32.628 INFO APP: MissionSpawn:spawnLocalPlayer 1749,SpitfireLFMkIX
2021-10-21 19:27:32.751 INFO VISUALIZER: cockpit ILV loaded
2021-10-21 19:27:33.343 INFO COCKPITBASE: lua state still active MACROS, 12 (status undefined)
2021-10-21 19:27:33.343 INFO COCKPITBASE: lua state still active VHF_RADIO, 15
2021-10-21 19:27:33.343 INFO COCKPITBASE: lua state still active INTERCOM, 16 (status undefined)
2021-10-21 19:27:33.345 INFO WORLDGENERAL: loaded from mission Scripts/World/birds.lua
2021-10-21 19:27:33.418 ERROR_ONCE DX11BACKEND: texture 'spitfireix_cpt_glass_diff_roughme' not found. Asked from ''
2021-10-21 19:27:33.775 ERROR_ONCE DX11BACKEND: texture 'spitfireix_ref_chrom' not found. Asked from ''
2021-10-21 19:27:58.607 INFO NET: Current ping: 14.9ms
2021-10-21 19:28:27.095 ERROR SOUND: bufferEvent has timed out.
2021-10-21 19:28:28.608 WARNING LOG: 35 duplicate message(s) skipped.
2021-10-21 19:28:28.608 INFO NET: Current ping: 15.1ms
2021-10-21 19:28:28.680 ERROR SOUND: bufferEvent has timed out.
2021-10-21 19:28:39.274 WARNING LOG: 241 duplicate message(s) skipped.
2021-10-21 19:28:39.274 INFO INPUT: Key combo skipped. Layer[Unit UH-1H] key = [4146] device = [Oculus Touch] modifiers[] switches[] action[down = 3004, up = 3004down value = 41.375000up value = 41.250000]. Combo already mapped to action [down = 216, ]
2021-10-21 19:28:39.338 ERROR SOUND: bufferEvent has timed out.
2021-10-21 19:28:58.630 WARNING LOG: 438 duplicate message(s) skipped.
2021-10-21 19:28:58.630 INFO NET: Current ping: 15.0ms
2021-10-21 19:28:58.631 ERROR SOUND: bufferEvent has timed out.
2021-10-21 19:29:28.636 WARNING LOG: 680 duplicate message(s) skipped.