Proxies for Instagram [need help]

I'm just confused If for example I used a proxy with 3 instagram accounts with a proxy and they got banned and I want to try again with different accounts , will they get banned as well ?

Will Instagram put the IP of my proxy in a blacklist or something like that?

Probably yes - they flagged your proxy as potential banned or your proxy is already used by someone others or were used just you dont know this. I suggest to get a new proxy