There’s high possibility that selectors might have been changed in UAT.
What you can do:
- Open Selector window of Particular Ui Activities and click on validate.
- If Its validated then click highlight where you will see if bot is able to identify actual element on the application or not.
- If highlight option not highlighting the actual element on application then you need re-map selectors again.
- If highlights option working then change its method such as Simulate, Send Windows message, and Hardware
- If you are using modern Activities then you can also try as Chromium API as your input method.
Thanks!!