When you use Check App State and set it to “disappears” it spams the log with entries. This is annoying. It should only add a log entry when it first starts waiting for the item to disappear, and then when it disappears (or times out).
For this particular automation it can be a long time for the element to disappear, and this results in PAGE AFTER PAGE of this:
NOTE: This is UiPath.UIAutomation.Activities 21.4.4