Why is form collapse no longer working?

I had an existing form collapse but I wanted to change  the form key. Now it no longer lets me select the form collapse. 

Is this about trying to include form collapse in the conditions wizard? Please give us more details so we can help you further.

Yes, this is about trying to include form collapse in the conditions wizard. My form collapse is titled "show form" and I can no longer select it from the conditions menu. 

There seems to be a temporary glitch on our side that affect the Condition Wizards to show/hide the Collapse field when use in conditional statement.

An immediate fixed had already be done by our dev. I could no longer reproduced the same problem on a test form.

Please check and test again on your side. Let us know if issue persist.

Thanks.

It works! Thank you very much!