This might be pretty much the same as T108437: Added button groups to WikiEditor toolbar do not appear after MW ResourceLoader update (English Wikisource)?

Would such a break force the toolbars to appear between the header and the footer? Also, Londonjackbooks' common.js code is identical to mine with some minor differences (which I don't believe has anything to do with the problem), and yet my toolbars appear properly and without any problems.

Linking this post on Wikisource on this subject: https://en.wikisource.org/wiki/User_talk:AuFCL#Perhaps_you_can_take_a_look.3F_Continued

So is this a general problem that several users face that do not have custom code in their common.js?
Is this a general problem that several users face that do have custom code in their common.js?

and the results are not the same. although the code is.

Maybe the user might have different gadgets activated that might interfere?

@Londonjackbooks: Could you please open the browser's console (or whatever it is called in your browser) and reload the edit page (with an additional &debug=true added to the URL address of the edit page) that you see the problem on? If there is a problem or an error with JavaScript it should be printed in that console.
For more information please see:

• Firefox ≥24
• Internet Explorer
• Google Chrome
• Apple Safari
• Opera

@Ineuw ? @Londonjackbooks?

This was resolved. The error was found in one of the user's common.js scripts. Apologize for not notifying here.