Error loading Fiori Application - App could not be opened

[imtiazak]

Dear SAP community,

we are getting an error while opening one Fiori App in FLP. App is exposed to Workzone via content federation, and was working previously. This is not a BTP custom App, but a UI5 app from S4HanaOnPremise, and from 3rd party. 
Same App is working in Test system. I checked the ICF / Odata services, also Autorisation, and everything seems to be fine. 
Has anyone experience something similar, and was able to resolve it? 

thanks,

Imtiaz

[MioYasutake]

@imtiazak Do you see any errors in the browser's network tab or the console?

[imtiazak]

only one that seems like relavent is this one

"Log-dbg.js:452 2024-05-22 15:15:47.593199 Failed to resolve navigation target: #FioriApplication-display. This is most likely caused by an incorrect SAP Fiori launchpad content configuration or by missing role assignment. - Could not resolve navigation target sap.ushell.renderers.fiori2.Shell.controller"