Grab Activity Hangs in BPM

Hello,
In the Process Community, when a user clicks on the grab activity, the grab hangs at the grab instance on the first click. Is there a way to get the instance to move along so that it passes the grab to the next activity?
Thanks.

Mariano,
I just read through this thread, and I have a follow-up response.
If I have a "defined" Grab - one transition leading TO it, and one transition going AWAY FROM it, then I attach a screenflow to the grab so that the user who grabbed the item can do something, I would like the process to automatically continue along to the next Activity that the outgoing transition leads to.
The documentation reads like that should be the default behavior:
Post-conditions
Defined Grab: Once marked complete, instances are sent to the next activity in the process via one of the outgoing transition lines.
But when I test, it performs more like you describe in this discussion thread (Actually 3 step process). It does not go to the next activity in the process via the outgoing transition line. Instead, after I complete the screenflow, for the grab, then I have to "Send" it by checking it off and clicking the send button. So the 3 steps are:
1) Click Grab Icon (to grab the instance)
2) CLick Execute button (to run the screenflow related to the Grab)
3) CLick the Send button
I found that to "mark it complete" so that it will automatically go to the next activity you can set action = RELEASE in the outgoing parameters for the screenflow.
SO now it it 2 steps:
1) Click Grab Icon (to grab the instance)
2) CLick Execute button (to run the screenflow related to the Grab)
Thus, by adding "Action=RELEASE", I am able to alleviate the user from having to click the SEND button.
Regards,
-Brian

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