I'm pretty sure it short dumps in the following code section:
call method cl_gui_cfw=>flush.
That method call triggers the method call to the ActiveX object. In my case it short dumps (with MESSAGE_TYPE_X just like in your case) because I don't have the ActiveX object, it is not installed nor registered in the Windows registry. I think you should reinstall SLC (2.0 SP2 or higher) and flag the Kerberos support while installing. Once installed make sure the ActiveX object exists in the file system and that it is registered. If it still short dumps, you will have to share version details, logs/traces, etc.