Hey, I posted two threads in the tips & tricks section for general debugging and for UI debugging you can see here:
Also, I’ve found it very helpful if you can identify what the problem is yourself, or take an educated guess at it, and let the agent know what you think the problem is. For example, with UI issues sometimes the agent will get hung up trying to debug an already working implementation of a library, when the issue really is just a CSS issue. Telling the agent “I think the problem here is a CSS issue, could you check all the relevant files and try to see if the issue might be there?” works to get it stuck out of a loop of trying to implement the wrong fix.