PowerBuilder 12.6 App crashes randomly

Hey Guys,

we have a big problem with our application on only a few clients of our customers, running our PB application. The application is crashing randomaly. The crash can't be reconstructed. Sometime it crashes, on a Click, Open of Window, .....

information about used components/version:

• PowerBuilder 12.6 classic
• Version: 12.6.0.4011
• PFC is used
• compile options:
  • Pcode
  • Platform: 32 bit
• used Database: SQL Anywhere 16
• operating system of client: Windows 7 32 bit

Below you will find the event log of windows:

Does anybody know this Problems? Are there known issues with PB12.6.0.4011?

Thanks for your help.

Heiko