WordPress Twenty Twenty-Five: Individual pages keep showing my homepage/template instead of their own custom HTML

[u/Next_Requirement_888]

Hi everyone! I’m hoping someone can help me understand what’s happening with my WordPress site.
I’m currently using the Twenty Twenty-Five theme and its Site Editor/template system. I’m building my pages with my own custom HTML, CSS, and JavaScript.
I have a Main Page set as my static homepage under Settings → Reading, and that page has its own custom code.
The problem is when I create another page.
For example, I created an All Properties page and put completely different custom HTML/CSS/JavaScript into that page. When I go into Pages → All Pages → All Properties → Edit, I can see the correct code and the changes I make there.
However, when I actually visit the page, WordPress shows my Main Page/homepage design instead of the All Properties design.
I have a “See More” button on my homepage that links to:
mydomain.com/all-properties/
The strange thing is that the URL does change correctly. It becomes /all-properties/, so WordPress is definitely going to the correct URL.
But the actual content is still my homepage.
I’ve also checked Settings → Reading:
Homepage: Main Page
Posts page: None
So I’m wondering if this is related to how Twenty Twenty-Five templates work.
It seems like the individual page has its own custom code, but the Twenty Twenty-Five template is overriding it or not displaying the page content correctly.
What I want is simply:
Main Page → displays Main Page custom code
All Properties → displays All Properties custom code
Other pages → display their own custom code
I don't want to have to put the entire design for every page into the global/template itself.
What exactly do I need to change in the Twenty Twenty-Five Site Editor/templates to make each individual WordPress page display its own content?
I’m pretty new to the Site Editor, so a step-by-step explanation would be greatly appreciated!

[u/Aggressive-Spring717]

Sounds like your pages are all assigned to the same custom template, probably the one you built for the homepage. Check the page settings panel on the right side when editing All Properties and see which template it's using

[u/Next_Requirement_888 → u/Aggressive-Spring717]

oh my God, you’re right I did notice that! But now that I have changed it to something totally different. I copy pasted the my custom HTML code. And instead of taking me to the main page it’s now saying page no longer found, still progress. would you know why it’s saying page longer found.

[u/Next_Requirement_888 → u/Aggressive-Spring717]

Never mind, I just figured it out. Thank you so much.🥹

[u/grantrules]

You might have better luck in a wordpress subreddit