Quick answer: Fix FiveM OneSync errors with onesync on or onesync_enableInfinity true in server.cfg, correct population and current artifacts.
If you landed here: Console shows "OneSync not enabled", players invisible, population limit not working or Infinity fails.
Error → fix
| Symptom / log | Fix |
|---|---|
| OneSync not enabled | onesync on in server.cfg, full restart |
| Population not working | txAdmin → Settings → enable OneSync Population |
| Infinity unavailable | onesync_enableInfinity true + latest artifacts |
| Players invisible | Enable OneSync, update framework, clear cache |
Related
Frequently asked questions (FAQ)
OneSync not enabled – what to do?
In server.cfg: onesync on (or onesync_enableInfinity true for Infinity). Use latest FXServer artifacts. Full server restart.
Players invisible / can't see each other?
Enable OneSync, match sv_maxclients to population, update artifacts. For ESX/QBCore: check framework version.
OneSync Infinity vs legacy?
Infinity (onesync_enableInfinity true) for large servers (64+ players). Legacy onesync on is enough for small servers. Don't mix both.