Posts get Title and Content Error: tmptitle and tmpPost

Ever since Postie update from version 1.8.45 to 1.9.1 I’m getting the following errors occurring when Postie creates a post:

The new post gets created successfully, but has Title of “tmptitle” and the post content contains only “tmpPost.”

Additionally, the post does not get the correct category assigned, nor does it get published (stays a draft).

We have postie set to get emails from a Gmail account, and to use the Subject as the Title, and grab the image from the email.

Postie does successfully access the email account, gets the image and adds to our media library, and creates a post — but the post suffers from the above issue.

NOTE that we also have the Postie Add-on:
Postie Addon to strip all text only leaving the images (version 1.0.3).

Is there an update for this add on that is necessary?

The Postie website now lists the name of the add on as: Image Only AddOn

Thanks for any help!