The answer to 'flashing clogged gutters' is that clogged gutters can lead to water backing up and getting behind the flashing, which can cause leaks and damage to your roof and home. Common causes include leaves, twigs, and debris buildup in the gutters. Symptoms include water overflowing the gutters, staining on the exterior walls, and potential roof leaks.
The solution is to regularly clean and maintain your gutters to prevent clogs. This is typically a DIY task, but you may need to call a professional roofer if the clogs are severe or you're uncomfortable working on a ladder. A professional can also inspect your flashing and make any necessary repairs to prevent future leaks.