Version Info

• Minecraft: 1.18.2
• Chunk Loaders: 1.2.2

Are you using OptiFine?: no

Description of the Bug
inactivityTimeout parameter not working as it should.
When the server is restarted,
Set<UUID> activePlayers = new LinkedHashSet<>(); - cleared...
Data should be stored in a more secure place, since, for example, a player may not log in for more than 1-2 days, and the downloader must work.

Not sure what you mean. All data is saved to disk, including when a player was last online. When the server restarts this is just loaded from disk again as you can see here

Closing this as the original issue is invalid, since the timeout data is already saved and loaded again between restarts.