Minimizing chip will start endless loop

Hi,

I'm running on NWBC

If have two chips which are build with WebDynpro Abap.  The chips except a tag from SAPGUI.

Both WebDynpro components use an iframe to an url on my own system.

One works oke. The 2nd will ask twice

Pushing No twice and the application will show the iframe correct.
Everythings works. Changing new line will give a reaction in the chip.

But when i press the minimize button of the chip, i will get the wait symbol.

The sidepanel will block completly.

Th eonly thing i can do is to restart the transaction again and close the old one.

Has somebody an idea how to fix this problem?

Greetings Maarten.