@fireflywebs: Hello Glen,
I checked the issue in Catch Inspire Pro and found the same issue. The template option in Post Page is not changing the layout of the posts page. The posts page layout seems to be changing only by the Homepage/Archive Layout option in the customizer.
I have added separate Category option for the post on Blog page and for posts on static homepage. An update will be released soon for this.
There seem to be an issue using Custom Content Type using a page builder. The issue will be fixed and an update will be released soon.
I have the upcoming update will fix most of your issues. I will let you know when the update is released.
Kind Regards,
Skandha