I don’t see my local Add-On store anymore and any new store (repository) I add doesn’t show up, even after multiple check updates and system reboot. I run:
Home Assistant 2022.8.3
Supervisor 2022.07.0
Operating System 8.4
Frontend 20220802.0 - latest
Do you see all your installed add-on ? What’s happen when you click on the bottom right button (blue button) on the add-on screen (As the stores are not displayed by default) ? Do you have any error in the supervisor log ?