AMP reports incorrect active players count arma reforger

[marwanbd83487]

Operating System

Edition Windows Server 2025 Standard
Version 24H2
Installed on ‎10/‎30/‎2025
OS build 26100.6905
Experience Windows Feature Experience Pack 1000.26100.253.0

AMP Version and Build Date

AMP Release "Phobos" v2.6.3.2, built 22/10/2025 11:12

AMP Release Stream

Mainline

I confirm that

• I have searched for an existing bug report for this issue.
• I am using the latest available version of AMP.
• my operating system is up-to-date.

Intended Action

im trying to see the number of active players on my server ( at glance) in AMP UI

Expected Behaviour

to see the correct number of active players on the server

Actual Behaviour

in this specific example,AMP shows only 7 active players online on the server instance, meanwhile an active battleye rcon connection reports 10 active players,and game server performance statistics output line shows also 10 active players
so it seems AMP isnt registering player joins and or player leaves correctly
attached instance logs

AMPLOG 2025-11-08 18-56-45.log

Reproduction

install arma reforger, configure it as you wish and also enable logstats startup parameter
https://community.bistudio.com/wiki/Arma_Reforger:Startup_Parameters#logStats
and launch server
download battleye rcon app and monitor server ,on AMP and in the rcon app
active player counts in AMP differts than what the game server reports in performance statistics output line in the console,and what the rcon app shows

[Greelan]

For clarity, the issue is not with the template user join regex - has been verified with the logs

[IceOfWraith]

Referencing back to the original convo for future reference:
https://discord.com/channels/266012086423912458/266012086423912458/1436879092854034512

[marwanbd83487]

i think these logs files may also be relevant since its in the same period

AMPLOG 2025-11-08 00-00-01.log

AMPLOG 2025-11-09 00-00-00.log