Here’s my screen. As I said before, I’ve set all of that and erased all demo content. You can see the header I’ve set in composer on the screenshot, but the screenshot I included in my original post is what is being generated. I thought it might just be on the CPTs, but it happens off and on on my home page also. It will not allow me to create a mobile page for CPTs, which is where it happens most often, but it is also happening on other pages and even my home page. The text is embedded somewhere other than in Composer. I was asking if there is a way to get into a php file or something to delete this line?

My screen in Composer: https://drive.google.com/file/d/1Ik59zSTUwF_pVDyo2uLProI_hfgiHOTq/view?usp=sharing

What is being generated on mobile: https://drive.google.com/file/d/1zoxwyZczM9jZZjAQrY-8Mz4Ph4rAft5e/view?usp=sharing

Both of these articles are running the same template (Single Template) that I have gone in and edited. I have created mobile pages, erased demo content, and uploaded my own information. However, they have different headers on mobile. So how is the same template generating different headers?

Correct mobile header: https://409family.com/409-family-southeast-texas-splash-pads-pools/

Incorrect mobile header: https://409family.com/409-outline-june-events-around-southeast-texas

Sorry for the multiple replies. As I dug into your proposed solution, I found it lacking.

I have also gone in and edited each individual Cloud Template with my header/logo info, and as I said, erased all demo content from the Theme Panel. So where would the demo content still be generated from?

So setting a Header as Global will not override other settings? That seems like it defeats the purpose of having a Global header setting option.

The events page is generated automatically, and I don’t have a Page in my dashboard to edit or assign a template. How can I remove the demo content from that page?

Try deactivating the Mobile Theme plugin. Took me a little bit to figure out also.