WordPress TinyMCE toolbar/tabs unresponsive in Chrome Version 50.0.2661.86 (64-bit)

[jackalope]

Hello guys
here i'm on a macbook with chrome latest stable version 50.0.2661.86 (64-bit).
Updated now wordpress to 4.5.1 that should correct bug:
#36545 WordPress TinyMCE toolbar/tabs unresponsive in Chrome Version 50.0.2661.75 beta-m (64-bit)
but, I still having the exactly same error, infact i got:

tinymce.min.js?ver=4310-20160418:11
Uncaught TypeError: Cannot read property 'refreshContentEditable' of undefined

Already cleared my cache but still in error.
Already tried with incognito mode on chrome
Already tried with another browser (safari and firefox on mac) with private mode
Same thing. When i select a text and i press Bold button (or other button) nothing happens.
ANd with error console opened i got same error.

If i restore tinymce before 4.5 (because i got error also with 4.5 and up) all works perfectly.
I attach tinymce that works.

Thanks
regards

[jackalope]

tinymce old version

[mensmaximus]

I can't confirm this bug in WordPress 4.5.1 Chrome on Windows Version 50.0.2661.87 m
TinyMCE is working as expected, no issues at all.

[jackalope]

Could it be something connected to a singular WP installation?
I tried on my 4 websites with wp i manage and only into 1 i got this error. On the others it's all ok.
I also tried to disable all plugins on that site. But still got error.

thanks for help
regards

[azaozz]

Cannot read property 'refreshContentEditable' of undefined is a different error than the one reported in #36545. Could be that the tinymce.min.js file got corrupted during the update somehow.

Can you try uploading a fresh tinymce.min.js file from the ​4.5.1 zip package, then clear caches again.

[jackalope]

Before overwrite file I tried now on Windows Chrome version 50.0.2661.87 m and i got same error.

After overwriting i tried also with IE 11 and Firefox 45 i saw i got all the same error.

I tried to do the same test on others WP installations (3 other website) and with the same browsers all work perfectly so i presume it could be something other like a plugin or a theme.

I will do more extensive testing and i will give you feedback, by hoping finding the guilty.

[jackalope]

In the end i finally found the guilty.
It was the plugin Opening Hours here
​https://wordpress.org/plugins/wp-opening-hours/

I tried to disable all but probably something was still not cleared well.

Anyway now with that plugin disabled it works perfectly.

Thanks guys for help

best regards

Simon