Hi Brandyn,
Are you able to see form Y_MX_ESS_PAYSLIP_TO_PDF under SMARTFORMS transaction and see if it is active status.
This could be anothe rreason for form not showing on ESS.
Also, check if you are logging into ESS for correct system and login system. Possibly url may be incorrect.
Also, ensure new transaction pz11_pdf (old one was pz11) is assigned to ESS user role and pz11_pdf service is published under ITS/Portal in order to recognize the transaction.
Thanks,
Ameet