I am using version 4.3.73 for my game servers... I took all of the nessasary steps to migrate from PEX to LP, although when I run /lp listgroups I do not see any of our old PEX groups.
-First I connected all our server’s PEX filed into the same database
-Then I downloaded LP on each server
-After, I ran the migrate command
-I then ran the bulk update command
-After that I ran the export command
-I deleted all PEX files
-I shut down all of our servers and configured LP onto the same database
-I started the server back up, and imported the export I made before

Did you remove PEX at the end?

Did you remove PEX at the end?

@Andre601 Yes, although I did not remove the PEX folder just in case it didn’t work, only the .jar

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Sorry about closing it, that was a mistake

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At what stage did the migration fail?

Were all of the groups migrated successfully before you tried to use the export/import commands?

Did you try migrating while using a database? I assume so since you said " PEX filed into the same database"
If that's the case, Store everything on permissions.yml pex file without using a database. Then migrate.