Patch 8604959 : Rel 12.0.6 AP / ZX : After applying patch, AP, AR and ZX forms fail to compile

(Created on behalf of Customer)
Hi

We have applied Patch #8604959:R12.AP.A ("RCA: ABLE TO DELETE ITEM LINE AFTER TAX IS CALCULATED")
but now the following forms can not be generated :


ap      forms/US        APXINWKB.fmx
ar      forms/US        ARXTWLIN.fmx
ar      forms/US        ARXTWMAI.fmx
zx      forms/US        ZXTRLLINEDISTUI.fmx
zx      forms/US        ZXTRXSIM.fmx

The patch or adadmin Worker logs show a similar error for all of the above Forms :

  Compiling package body DETAIL_TX_LINES_1...
  Compilation error on package body DETAIL_TX_LINES_1:
  PL/SQL ERROR 905 at line 588, column 15
    object APPS.ZX_R11I_TAX_PARTNER_PKG is invalid