This issue is unfortunately quite common and seems to be caused mainly by Facebook’s security checks, not SNAP itself. Facebook flags logins coming from a server IP different from your usual location, and things get worse with 2FA, since SNAP can’t respond to those challenges. Using avatar world session login vs. username/password, reducing posting frequency, and keeping a stable server IP can help, but there’s no guaranteed fix as long as Facebook keeps tightening third-party access. Ultimately, this is a Facebook limitation rather than a plugin bug.
