Program locks up after 25 Events

[ResurgenceX]

I am running into an issue where my program locks up after 25 events have been registered from a cluster. I have created a cluster 32 of boolean controls and when a control is pressed it triggers an event in my event structure. It doesn't matter which of the 32 controls I click, after exactly 25 button presses the program locks up. Does anyone have any ideas what could be causing this?

[JoeWork]

Please post a copy of your code.

[xander18]

If you uploaded code that would be supremely helpful. But it sounds like you have your 32 controls all wired into a cluster, then an event structure that does something to that cluster whenever any of the buttons are pressed?

[ResurgenceX]

I am unable to post the code due to company restrictions, but I will try to be as specific as possible.

This code is part of a queued state machine design.

When the control is pressed it triggers a user event structure that queues a state in another loop. This loop will then take the appropriate action based on which button was pressed. After 25 button presses the program locks up. I know it is hard to troubleshoot code that you can't see, but since I am not allowed to post it any general tips will be greatly appreciated.

[altenbach]

Yes, we clearly need some code (possibly simplified), because your description is not clear.

• Do you have seperate event cases for each boolean or do you have a single event for the cluster?
• What is the mechanical action of the booleans?
• What kind of events are these (value changed, mouse down, mouse up, etc.)
• Do the 25 events actually execute or are they just getting queued up?
• Is the event structure always ready to react to events?
• What is your LabVIEW version?

[ResurgenceX]

• Do you have seperate event cases for each boolean or do you have a single event for the cluster? Single event for the cluster
• What is the mechanical action of the booleans? Switch when released
• What kind of events are these (value changed, mouse down, mouse up, etc.) Value change
• Do the 25 events actually execute or are they just getting queued up? Yes, they do execute
• Is the event structure always ready to react to events? Yes, It is running in a seperate while loop independent from the rest of the program. 
• What is your LabVIEW version? 13.0.1f2

[altenbach · Accepted solution]

It would really help if you could make a simplified demo.

In the event configuration box, is there anything interesting (lock front panel, limit maximum instances, etc.)

Do you set a maximum queue size?

[ResurgenceX]

My queue size was the problem. I was not correctly clearing the queue after a button press and kept increasing the queue size. Thank you for the help.