When attempting to remove a custom part via a "Cut" in design mode in BBIS. The part goes to "Updating" and gets stuck.
This occurred because the part was using the out-of-box "txtUsername" validation control. Doing so and placing this custom part on another page that also contains a form that uses this validation control will results in a scenario where the custom part interferes with the postback and cause the symptom described in this Knowledgebase article. To avoid this problem, create a custom validation group control.
Steps to Duplicate
1. Build and deploy a custom part. 2. Add the Custom part to page. 3. Attempt Cut the part or any other part from the page.