Webcomic – multiple webcomics on site, error message 'webcomic not installed"

Hi,
I’m trying to set up a portfolio site that is part webcomic (on one part of the site) and part static images/galleries (on the other part of the site).

I would like to have a ‘homepage’ for the webcomic that I can link to from the front page of the website. I would like the webcomic ‘homepage’ to be the most recent webcomic.

I have tried following the advice on the site (e.g. https://wordpress.org/support/topic/best-way-to-configure-webcomic-for-multiple-comics-under-one-install?replies=2) but when I try to select the Template: Webcomics Homepage from the dropdown, I get the following error message:
‘It looks like Webcomic is not installed or activated. This template will not affect the appearance of this page.’

I have deactivated and reactivated the plugin, and tried changing the version number (as per this advice: https://wordpress.org/support/topic/webcomic-archive-template-not-working?replies=12_) to no avail.

My less desirable alternative is to link to the archives page, but it doesn’t really look as nice.

Grateful for your assistance!