Based on my experience editing videos on TikTok, the app often resets edits such as crop, zoom, or layout changes once you change the background sound. This can be incredibly frustrating, especially after spending a long time perfecting your video. One key to minimizing this issue is to finalize your sound choice before making detailed edits to the video format. If you change the sound at the end, TikTok is less likely to undo your formatting adjustments. However, if you must change the sound later, try saving a draft of your edited video first, so you can restore your edits if needed. Another helpful tip is to use external video editing apps to make your desired formatting changes before uploading to TikTok. This way, your video format remains fixed regardless of any sound changes within TikTok. Remember, staying patient and planning your editing steps can greatly reduce the stress of TikTok's format resets. While it’s a common issue many creators face, sharing your challenges and solutions can help the community learn better editing workflows. Keep experimenting, and soon you’ll develop a personalized strategy to keep your videos looking exactly how you want them, despite these hurdles.