3216229 - Cannot log in BPC Web on BW 756 SP00 - message: "Check if environment is accessible" and Environment NULL.

• "Check if environment is accessible" message is displayed when trying to log in BPC Web.
• Environment shows "NULL".
• Chrome trace shows:

Assertion failed: could not find any translatable text for key 'sequense' in bundle 'resources/i18n/messagebundle_homepage.properties'

Failed to load resource: the server responded with a status of 404 ()

Assertion failed: ManagedObject.apply: encountered unknown setting 'environment' for class 'sap.epm.ui.controls.BPCShell' (value:'')

Failed to load resource: the server responded with a status of 404 ()

ui5loader-dbg.js:1505 Uncaught TypeError: oFF.QModelFormat.getAll is not a function
    at Function.oFF.QInA.addAllFormats (ff4400.olap.providers.js?eval:1:311557)
    at Function.oFF.QInA.staticSetup (ff4400.olap.providers.js?eval:1:299683)
    at Function.oFF.ProviderModule.initVersion (ff4400.olap.providers.js?eval:1:720570)
    at Function.oFF.ProviderModule.getInstance (ff4400.olap.providers.js?eval:1:720242)
    at eval (ff4400.olap.providers.js?eval:1:721035)
    at eval (ff4400.olap.providers.js?eval:1:721051)
    at eval (<anonymous>)
    at x1 (ui5loader-dbg.js:1598:14)
    at w1 (ui5loader-dbg.js:1494:5)
    at Object.H1 [as requireSync] (ui5loader-dbg.js:1991:23)

• SAP Business Planning and Consolidation 10.1, version for SAP NetWeaver.
• SAP BW 756 SP00
• SAP S/4HANA 2021

BPC Web,  , KBA , BW-PLA-BPC-ADM , BPC 'embedded model' - Admin UI , Problem