I have a simple form that is processing some data. I have a custom event, "ProcessedEvent," that fires every time a row in my dataset is processed. I have a registed method with the event that listens and updates a textbox to display the count of processed records.

When the user clicks the button to start the process, I turn the cursor to an hourglass and the textbox correctly listens for processedEvents and updates itself as intended.

I am running it in debug mode and if I switch applications and come back to my application, the textbox no longer updates itself, although when the process completes, the hourglass turns back to a regular pointer and everything completes as expected.

Is there some event at the app level like LostFocus/ReceivedFocus that I need to get my textbox updating method on my form to resume responding to processedEvents again, is this a bug, or is it a quirk of debug mode?