I used to hit this exact issue whenever we onboarded new client accounts. Operating multiple profiles off one office IP is basically waiting for a chain ban, because as soon as one account gets flagged, the system links the IP and reviews everything on it. I completely fixed cross-account locks by routing our tools through [url=https://www.simplynode.io/usecase/proxies-for-social-media ]simplynode.io/usecase/proxies-for-social-media. Setting up a dedicated mobile IP with sticky sessions for each profile keeps every account on its own clean connection, so a issue on one page never touches the rest.