Hi Hiraihan,
Does the track volume have keyframes in the timeline? Keyframes can cause the audio settings to revert back to the initial settings if they are set at specific points.
To check for and adjust keyframes in the timeline, follow these steps:
1. Expand the audio track in the timeline.
2. Click the Show Keyframes button and choose Track Keyframes > Volume.
3. If you find keyframes, you can either adjust or delete them.
For more detailed information on adjusting track volume with keyframes, you can refer to this guide: Adjusting Volume Levels in Premiere Pro.
Cheers,
Paul