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Rob
Forum Moderator

You'd need University IT to download & install an older copy, that's available on the Customer side of the ansys.com site. As a Student you won't have access, your Prof should. That should then run on a University machine that's connected to the licence server. There is no build of Student available older than 2023R2. 

I would be surprised if an element type had been retired in that way, I'll check.Â