Is anyone facing issues when increasing Facebook ad budget?

one thing nobody mentioned, the landing page switching is usually a separate issue from the budget thing. if youre running dynamic creative or multiple LP variations meta will start rotating to whatever its algo thinks converts once you give it more budget to play with. so its not random, its just meta picking a different combo than what you tested at low spend.

what helped me was duplicating the winning ad set into a fresh campaign at the higher budget instead of editing the existing one. editing live triggers the re-review way more than people realize. the learning phase resets and thats when the rejections start showing up out of nowhere.

also keep your spend increases off weekends if you can, meta review on sat/sun is way more trigger happy in my experience. could be coincidence but ive seen it enough times.