The same reflects fine for Gutenberg block in posts/pages however the same doesnt render while entering the raw shortcode in elements module editor to show as hook or other options
The error which appears is – : Widget class not found. Make sure this widget exists and the class name is correct
Yes – Right. This is the relative issue being faced as mentioned by you
To replicate, You may kindly try assign any plugin and generate shortcode through specific widget shortcode plugin.
Thereafter, Try to select through Gutenberg block and it will appear fine however, the same shortcode wont render when added through header/hook element
Sorry as your reply got missed due to which couldn’t add my response
Can you post the screencast with another software enabling me to see if the steps are similar as mentioned by me as the screencast link posted by you doesnt work right for me!