You can’t borrow credibility from your last job forever. Every new team makes you start the tab over.

Track record does not transfer automatically, because the new group did not see it and has no reason to take your word. That feels unfair when you genuinely earned something elsewhere. It is also reasonable, since trust is specific to the people giving it. Leaning on the old reputation reads as a request for credit rather than as evidence.

Going into anything new, plan to be useful before you are impressive. Do one visible thing well in the first few weeks and say little about where you came from. The history will come up on its own once people are interested.