No Method with signature error on Timecard customization after Framework patch

We are on EBS 12.2.6 and I recently loaded Framework bundle patch 34178812 to correct a missing scrollbar on the timecard screen after RUP16 was applied. We have a customization to add the employee's home cost center as a heading item in the Recent Timecards and Create Timecard screens in Self Service Time. After applying these patches, the customization broke. I took the RUP16 base files and used JDeveloper to recreate the custom deployment from scratch (to return the home cost center in the query). After deploying, when one goes to these functions, the screen returns an error "No Method with signature - initQuery..." which appears to be