Hey,
I started a new forum right after I upgraded to DelphiPlus membership. The text editor has changed, and now I only see half the functions I had before. This includes the editor I'm currently using to write this message. Half literally disappeared!
Is it something in the settings? 

https://forums.delphiforums.com/offensivity

One possibility, are you using a mobile device, pad or phone? Look at settings in the browser and switch to Desktop Site to get the full editor.

[Duplicates in Hosts noted.]

I wish it was that simple. I've ruled out every cause that I can think of. Sorry, it's not me. It's you.

With Zeta the host can customize the editor Toolbar.

This is what I see with a desktop computer using Firefox and  Zeta in your forum. I switched to Classic to see if the editor looked off but the Post Waiting period is preventing me from seeing the editor.

Even if the cause is Delphi - we'd still need to know what device/browser and UI (Zeta or Classic View) you are using. With Zeta the host can customize the editor Toolbar.

Can you give us a screenshot of what you see here?