componentId collision

My activity suddenly crashed. I can’t see my activity whenever I tried to click in. Now whenever I click Edit activity, it will display “componentId collision” and the only thing I can do is return to the activity page, which remains blank.

Hi there! Can you share a link to your activity so we can take a look?

The tech support at Amplify resolved my issue by restoring the version of my activity before the crash happened.

When I went back to edit (this time, making a copy beforehand), I was able to replicate the error when I copy+pasted into the same slide two or more sketches with graph backgrounds that have the same pre-defined variable “C”, then converted them one by one from sketch to graph. At the third sketch conversion, everything button and link became unresponsive, except “Publish”, “Save Draft” and “Discard Draft”.