Lossless saving not save audio

[ULTROwaka]

[Windows 10] [OBS 26.1.1] No audio track in output file if save with lossless option, but ok if saving with loss. All ok with audio in replaying in OBS.

10:59:55.106: [replay_source: 'Replay Source'] Load replay pressed
10:59:55.106: [replay_source: 'Replay Source'] replay added of 10.00 seconds
10:59:55.173: [replay_source: 'Replay Source'] Save replay pressed
10:59:55.183: [replay_source: 'Replay Source'] start saving '2021-02-15 10.59.55.avi'
11:00:05.225: Output 'replay_ffmpeg_output': stopping
11:00:05.225: Output 'replay_ffmpeg_output': Total frames output: 299
11:00:05.225: Output 'replay_ffmpeg_output': Total drawn frames: 301
11:00:05.283: [replay_source: 'Replay Source'] stopped saving

[ne0lines]

Having the same issue. No audio for lossless and out of sync audio for flv format.