Sorry to post to a solved topic, but I have a slight variation on the issue. My environment is 12.x and still showing expired licenses because the renewals were issued (and imported) as 14.x. I know we can ask for them to be re-issued for v12, but we plan on migrating in the next few months.
My question is whether I can delete the expired v12's now and still run ok on the v14's until upgrade time?