Are you saying you have been running the campaign for years but the accounts only got disabled recently? or did you just start posting again after leaving the accounts inactive for years? Do you share the same pictures on all accounts?
stop posting for few days 2-3 days then see what happens, if the posting is the issue you will have no bans in the next few days but if the problem persists then it’s not JV nor posting, do you access those accounts from another device or software? do your accounts share the same child accounts, dm’s, or posts?
I am exactly in the same situation, i just post no F/U and recently i turned one of my old phones to a 4g proxy. I have had EV PV then finally the The 24 verification is appearing in each of them all of this without reason. I use the same posts too but i have been shuffling them.
Only 2 accounts are running fine one is a different niche and very old since 2017 and the other is from march 2020 but small follower count. I am afraid to put my other accounts to JV i really don´t know what to do
Do you have “make images unique before they’re posted” option checked in your campaign? Posting same pictures while sharing the proxy is risky because IG will know that those accounts are linked, and once one account gets disabled, the other accounts will most likely get affected and disabled too. Also, i think there’s no need to reset the device ID on accounts that are working fine.