"Edit charts" shows "Error!" and cannot change it

There are a few other threads about the “Edit” options creating problems.

Well I’ve tripped across one that I couldn’t find in the forum yet.

I edited the charts and it complained about tab characters. I removed the ones I found and saved it but perhaps there were others that were in the config and now I cannot edit it at all.

Any way to restore the chart config so I can edit it again?

Version 1.2.5

The YAML structured is generated from the config entries under ui.overview.charts. Try editing those directly.