2941979 - BP/FPP3: Tab Contracts is missing after migration to S/4HANA 1909

In transaction codes BP, FPP2 and FPP3 the contract tab ("Contracts") is missing.
Business Function Set
  PUBLIC_SERVICES   Industry Extension Public Sector SAP
is actived in the system (compare in transaction code SFW5).

SAP S/4HANA 1909
S4CORE 104
IS-PS-CA 804

BUPA  PSOB10, SAPLFMCA_PSOB_ALV, FMCA_PSOB_ALV_CHECK, FMCA_PSOB_ALV_DATA_GET, FMCA_PSOB_ALV_DISPLAY, PSOB_BUPA_EVENT_FMOD2_ALV, TBZ0A BUPA PSOB, TBZ1F BUSS   APPLC   BUPA,

CRMC_PSOB_APPL Active Applications Public Sector, CRM_PSOB_APPLC BDT Application "Contract Object", CRM_PSOB_CONTRACT_OBJECT Contract Object in CRM, CRM-IPS-MD-PSO Contract Object , KBA , FI-CA , Contract Accounts Receivable and Payable , IS-PS-CA , Public Sector Contract Accounting , CRM-IPS-MD-PSO , Contract Object , Problem