Actually there is no real idea, but maybe something helps.
Eclipse uses its own compiler, and Maven probably uses javac . So you usually have to run, and these two things are not connected.
A restart of Eclipse has always been enough for me.
Take a look at the Help / About Eclipse SDK: is there an entry in Lombok?
My eclipse.ini contains absolute paths:
-javaagent:/home/maaartin/eclipse/lombok.jar -Xbootclasspath/a:/home/maaartin/eclipse/lombok.jar
but the relative path should work too. The question is "regarding what?"
Typically, Lombok can find the Eclipse installation directory and install it on its own. You must do this manually only when using non-standard installation directories.
Open the error log window, maybe something is going wrong. Just in case, see also the log files on disk.

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