I have added a TWebDBRadioGroup and it's fine until I add a few strings to the Items property at design time. The exception I get is
Do the strings contain any specific values?
I tested it here but couldn't see an issue.
the values are
very strange. I'm getting weird errors in places with other things too
Can you please provide details to reproduce.
I cannot see a problem here.
Did you try this in a new project?