We are running TC 9.31 and see similar symptoms when using Keyword Tests. The longest test we have is 20 mins but working with any of our tests all day can result in
1) TC slowing down or failing to execute commands (e.g. set_Text or setText will not put the whole string in a text box, only part of the given string).
2) Object Spy failing to recognize objects on the screen that have been in the Name Mapping for weeks and that were recognized in many previous test runs.
3) TC failing to recognize our application when nothing has changed in the app in weeks and it was recognized in many previous test runs.
By about 3 in the afternoon we usually have to restart our application and TC both to get anything to work properly.
