The T-RackS 5 software is the same in both editions, so re0-installing would not change anything. The functionality is determined by the Serial Number with which the software is Authorised. I suspect that it is still operating with the "TR5 Custom Shop" Authorization. You will need to Authorize it using the Serial Number for your purchased product.
If you run into problems doing that, then raise a Support Ticket, here:
http://www.ikmultimedia.com/contact-support/mi/for some one to one help (US (East Coast) Business hours, generally).
Also, try running the Custom Shop program, logging in, and selecting [Gear] >> "Restore My Gear". That might (Should?) pick up the Registration of your purchased product and make the features available.
Please raise separate Tickets for the issues you have run into since installing Mojave.