CKEditor text box not visible

I just went into site configuration to check the editor settings again. After looking at the BTS one I clicked Save. Now it won't load the configuration page - see screen shot.

Firefox Developer edition 54.0a2 (2017-03-20) (32-bit)

and

Firefox 51.0.1 (32-bit)

The problem is exactly the same in my normal Firefox 51.0.1, as mentioned above. It did run fine in that version until a short time ago.

Attached screen shot shows console.

Just looking at the page source, it looks like the configuration page is actually there, but is not displayed. See attached.

Done some more analysis and have found a div tag line 1317 in the attached file which says 'hide'. If I edit the html and remove 'hide' the page displays, albeit badly formatted.

Also found a couple of red tags lines 1289 / 1290 but haven't yet traced where that's coming from.

I am unable to switch editors as the configuration page will not load. That needs fixing first.

The site has been working fine until very recently, I will certainly look at removing extra jquery stuff but it's been like that for a long time.

OK, I guess I thought I'd done the upgrade. Now I have, all ran OK but the problem is still there.

I've upgraded your login to super admin. Thanks for your help, sorry I screwed it up!

I have just identified another problem in the editor. When you add a link to an image the Advanced tab is missing from the pop-up.

Capture.jpg shows this. The second screenshot, Capture1.jpg is from a different site and shows what I should be seeing. This has also only happened recently and may be related.

BTW - I also tried to upgrade a user login to Admin and it didn't work, just as it didn;t work when I gave you the login. Your login I gave you last time is still valid.

Thanks.

Not sure what you mean by 'the image is a widget'. Up until now, I have been able to add a new image, and on the advanced tab add the rel to slimbox. Even when editing an image, the advanced tab was always there - I recently had to update all images from Thickbox to Slimbox and it was there then.

I see exactly the same problem if I try to make a piece of text a link.

I logged in with your lighthouse2 user and I still see the same problem.

The admin issue is strange. Not a major issue, but it would be interesting to find the cause.

I must apologise again for the ckeditor problems - I had forgotten that in trying to fix one problem I inadvertently caused another. Thanks for that, I have done as suggested and all is fine again.

Dave. Today I updated this site to patch 5. I only uploaded the patch 5 files and ran the install OK. The editor is once again misbehaving as described at the beginning of this ticket, and the site configuration page will not load. Your email 24/3 said you'd fixed this but didn't tell me which file you changed. Just to be sure I uploaded the ckeditor package from Exponent but that didn't help. Please can you look again. The super admin login I gave you is still there. Thanks.

Thank you Dave. Editor working again. Which file did you update please? I would like to make a backup copy, just in case.

We still have the thumbnail problem in FileManager on this and Sandtoft development sites. Any thoughts on that one please?

Peter.