Ensure the subtitle isn't for a "BluRay" or "DVD" rip, as these often have different intro logos that shift the start time.
If you'd like to find a for these subtitles or need help adjusting the timing offset, let me know! subtitle Rumble.2021.1080p.WEB.H264-NAISURumble...
Most players (VLC, MPC-HC) allow you to adjust timing using G or H keys. Ensure the subtitle isn't for a "BluRay" or