For the same selector, bot is working fine in development machine and failing in UAT machine

There’s high possibility that selectors might have been changed in UAT.

What you can do:

  1. Open Selector window of Particular Ui Activities and click on validate.
  2. If Its validated then click highlight where you will see if bot is able to identify actual element on the application or not.
  3. If highlight option not highlighting the actual element on application then you need re-map selectors again.
  4. If highlights option working then change its method such as Simulate, Send Windows message, and Hardware
  5. If you are using modern Activities then you can also try as Chromium API as your input method.

Thanks!!