Welcome @Pants_of_Flames
Your DNS tree is too complicated to fully understand given my modest DNS skills. But, I would start by focusing on the two warnings at dnsviz about the auth server name mismatch and the incorrect glue records (pic below).
I consistently reproduce your timeout using https://unboundtest.com. This queries DNS similar to how Let's Encrypt does it (by looking directly at the auth server tree).
See DNSviz
https://dnsviz.net/d/sc.hawqs.tamu.edu/dnssec/
I'd start by correcting these
