Custom apps displayed as blank page in public cloud

SAP S/4HANA Cloud Extensibility SAP S/4HANA Cloud Public Edition 

Hi Expert,

We followed enactment https://me.sap.com/notes/3274236/E to make a customized tile of My Inbox(F0862) to adhd caller filters different than the default ones.
We added the expertMode parameter and assigned to the related catalog,

but aft publishing, it lone displays a blank leafage and is unusable...

I recovered that, for on-premise we tin troubleshoot and wide the cache to lick the issue, but I americium not definite however to grip it successful nationalist cloud...
Do you person immoderate suggestions for solving this problem?

Thanks successful advance.