Battleye Timeout error code: PLUM

Bungie Account Name - CØMPLEX#8527
Platform - Steam
Description of Issue - Battleye Timeout with error code: PLUM
Rough Date and Time of issue - 2/26/2026-02/27/2026 (on-going)
Repro Steps - No known cause of error.

Details:
I know there are probably bug reports about this issue from other reporters, but I'd like to also report the same, while giving some information.
The PLUM error code pops up both during matches, and when only in menus. Online searches yielded queries from others about the same error code in Destiny 2/other Bungie games, and the remedies for it; things like disabling overlays and making firewall exceptions. I've gone through my PC, and disabled anything that could overlay anything over Marathon, even if the overlay settings weren't enabled for those programs, checked the firewall, but saw that Marathon already had exceptions, checked to see if any over anti-cheats were affecting Battleye, but no other one was active. I've also used two different internet connections and ISPs to check if it was client end network config issues, and got the same results. When getting error code PLUM during matches, sometimes Marathon will allow a reconnect to continue the match, and other times it will end the match for me after reconnecting. I am not sure if Battleye was implemented for the alpha/beta/technical tests, but from my experience in those play tests (approx. 45 hours total across all), this was not an issue. Otherwise Marathon runs smoothly, with no other issues at all for me. I have no issues initially connecting to servers, during matchmaking, or mid-match. Only the sudden disconnects with error code: PLUM, and a separate Battleye pop-up over the Marathon window saying "Battleye Timeout".