[Workbench Moderation] Submit Button Disappeared, Create New Revision Checkbox Disabled, and Only Preview Button Appears after Applying Drupal GIN Theme

Moving this to Normal as Gin itself works just fine and all tests are passing.

If Gin is incompatible (for some reason) with the Workbench moderation module we might want to change this issue's category to «Feature request» (if that would be the case). I myself don't use this module so I can't really tell.

Maybe somebody else is also using the module and can help.

Can you maybe check if there is any console error output or JS errors present?

Also I noticed the following on the workbench moderation module page:

Since Drupal 8.2.x this module is in core as "Content Moderation". If you are starting a new project or adding a content moderation workflow to an existing site using Drupal 8.2 or higher do not use this module, use Content Moderation in core instead.

So maybe the module is not fully compatible with Drupal 8.2+?

I have figured out the issue for Submit Button Disappeared, Create New Revision Checkbox Disabled
To restore the submit button in the GIN theme, you can make the "Preview before submitting" option optional. This setting can be adjusted for each content type individually.

@saschaeggi Thanks for your valuable feedback. Will look into content moderation provided by core

Great 👏 I'm sure closing this issue then.