Creating Lexicon backup after playlist import not closing

Importing a single playlist from Serato with only 7 tracks in it, is taking a seriously long time. It’s stuck on the creating lexicon backup screen after importing. Is it normal to have all of those instances of Lexicon open in task manager?

Yes that is normal and the backup is of your entire Serato database and all crates so depending on the size it can take some time, but not crazy long. How long has it been running?
Check your Serato “database V2” file size, I’ve seen it grow to gigabytes because Serato doesn’t clean up the database and reclaim storage space