So far so good. I did some general testing and noticed that there appears to be a scoping issue associated with the "Local Tab Configuraiton" panel.
To recreate:
Add a new card to the dashboard
Select Tabbed Card
Select any other type of subcard
Expand the "local tab configuration" panel
Hit the "+" symbol (leave the "local tab configuration" panel expanded)
Now on any tab the "local tab configuration" panel is blank and the contents are flicker on screen when expanding then disappear. Reviewing the HTML with it expanded and retracted the "" contents are present when retracted and shown when expanded.
This bug does not seem to happen if the "local tab configuration" panel is retracted before switching to another tab.
Hopefully this feedback is helpful. Thanks for your hard work!
Originally posted by @Cerothen in https://github.com/kinghat/tabbed-card/discussions/27#discussioncomment-4683317