Paper Server, ex-Forge world - how to clean up world file and unknown attribute warnings?

I inherited server files to host for friends. Their server ran on Forge as they used a tree-felling mod, but no modded blocks were added. I now run the world on a Paper server and added an equivalent plugin, but the console will now spam warnings about unknown attribute. While this is mostly harmless, it is annoying to see and I think all of the old Forge data is causing random issues like people losing all xp or dying on login. In addition, I think the world files are causing a memory leak as memory usage will slowly creep up and stay there, even when all players have logged off.
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Requested by vodka_2367#0
Mortis
Mortis2y ago
Take a screenshot of your files like the folders n stuff
Mortis
Mortis2y ago
example of a Paper/spigot(ish) server
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Mortis
Mortis2y ago
the config folder will likely contain forge configs that u gotta delete
Vodka
VodkaOP2y ago
I've imported only the world folder itself Everything else is clean Paper
Vodka
VodkaOP2y ago
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Vodka
VodkaOP2y ago
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Vodka
VodkaOP2y ago
@Mortis
Mortis
Mortis2y ago
Alright so no world issues beyond playerdata? You might need to use NBTExplorer and remove weird attributes from the player.dat files in playerdata
Vodka
VodkaOP2y ago
Not in-game, no The main symptom is the missing attribute console output As well as a potential memory leak There will be a few weird quirks
Mortis
Mortis2y ago
can you copy post that specific error
Vodka
VodkaOP2y ago
One time the server ran out of memory, and on reboot I logged in with fly mode enabled (even though I didn't have it on before)
Vodka
VodkaOP2y ago
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Vodka
VodkaOP2y ago
These will crop up when players are moving in certain chunks Not all of the time I have no idea which ones. Presumably ones that were generated before the migration But this doesn't seem to be the case with all of them Most of us are settled near spawn and this message doesn't constantly appear Which suggests that maybe it's not every single chunk
Mortis
Mortis2y ago
can you do me a favor? Go to playerdata and upload a single nbt file here

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