Hi,
In my offline mdk app, when I create an entity for Reservation Entity in offline mode and press sync for uploading the same, upload action comepletes successfully and record gets created at backend. Then DownloadOffline action starts which fails. The downloadoffline action tries to download the entityset from backend.

Error is reported in banner message on sync failure :

Below is log from client trace.

An error is logged in the trace : 'Parameter 20 value is out of range for conversion.' Not sure which parameter it is referring to.
Best regards,
Sumit