Just yesterday I had the confirmation from Design Studio development team that a new issue introduced with SP1 for Design Studio 1.5 has been identified and already fixed. Over the last days many incidents were created on this, some of them with Very High priority, due to the criticity it has for business users.
When running Design Studio applications on BI Platform errors like data source instantiation not possible are raised (Data source is not initialized, could not instantiate the data source, cannot load query). In many cases it is resolved with an APS restart, but the issue comes back after some minutes.
If you look at the APS logs you will see the error:
“…Not a valid logon token. (FWB 00003) Cannot find token.”
SAP Development released SAP Note 2218808 today on this and for DS 1.5 SP1 PL1 – which is going to fix this issue – planned release data, please refer to this note updates.
Update on September 24th: PL 1 was released to SMP. This is supposed to solve this issue!