Got it. Unfortunately, that’s not really considered a valid reason by Starbucks to request a transfer, mostly because there’s no way to guarantee what the other store will be like, or will eventually become. If you’re not happy with the environment at your store, especially since you’re a keyholder, you’re most likely going to be told that part of your responsibility is to help fix the issues you’re seeing at the store.

I had the same situation and my reasoning for transferring was "hostile environment". It may be difficult just because you are a key holder however. If it deals with toxic co-workers and such and you've voiced your reasons to your SM and nothing has been done let that be noted if you DM asks you about why you want to transfer.