PowerBuilder COM component - transaction not connected

Hi,

I have powerbuilder COM component (PB 11.2) used by 2 .net web applications. Both the .Net applications using same application pool.  All the database interactions are in the COM component. One application able to save changes to the database. But another .net application throwing error "Transaction not connected" while commit using SQLCA;.

Any idea why this error thrown out? Help me resolve this issue?

Thanks,

Senthil