Was there a recent update to Daz 4.8?
Seems a bunch of layout suddenly changed since last night, and I'm confused. I'm not talking I clicked on a different tab, but my toolbar changed from [File, Edit, Tools,Create, Render, Connect, Windows, Help] to [File, Windows, Help, Edit, Render, Connect, Tools, Create]. Also layouts of the dropdowns also changed... undo is no longer at the top of Edit... Panes is now at the bottom to Windows instead of at the top... It reminds me of a older form of Daz, so it's probable I switched something without realizing it (wouldn't be the first time) but just checking there wasn't a recent layout change...
Edit: Nevermind... I goobered, and somehow clicked off of "Self-Service" in my layout... Not sure how, but that is likely what happened...

Comments
Did you do an update to Studio? Unlike some stuff it won't sneak them in when your not looking. Pretty sure there has not been a really recent one. I've been on the look out.
Sadly, I'm so used to Windows sneaking in updates that I just assume everything does... And well, I don't always see what's being updated via DIM... but this time it was my goober...
Change your settings on windows so you have to OK them.