We've upgraded the Sybase server from 12.5.2 to 12.5.3 on Sparc Solaris and now some of our binaries (which didn't change) receive the following error:
Open Client Message: Layer 1; Origin 1; Severity 1; Number 158; Message String: ct_fetch(): user api layer: external error: This routine can be called only if fetchable results are available to be read.;

Do you have any idea what could have cause this problem? Our binaries are statically linked to the Sybase client libraries and we use 12.5.1. We've tried to link with the libraries from the latest SDK (EBF13138), but we still get the same result.