Lombok's @Builder not detecting fields of the Java Record
According to this records are supported from Lombok version v1.18.20
@Builder on records is supported since the last release v1.18.20. Which version are you using? Note that this may also be just an IDE issue. If you are using IntelliJ, it may not be supported, yet.
Probably an IntelliJ issue ... try writing the code without IntelliJ auto-complete, see if it compiles ... if it does ... its an IntelliJ issue ... if it does not, something is wrong with your code.