Ok, so we upgraded to the newest version:

and went then as we have in the past to:
â*modules/Emails/include/ComposeView/EmailsComposeView.js* â
and then added back the code we use at line 1387. Below our two custom versions which we used in the past with success:
âLighter versionâ: https://pastebin.com/krs6N4S0
âExtended versionâ: https://pastebin.com/FBtsA7xP
But by doing that is basically kills the e-mail editor:
Now if we go back and reverse the code change to:

then the e-mail editor (leads or >> directly Alll >> E-mail), loads perfectly fine but without all the other tools obviously:
Any thoughts on how to fix this please?
Thanks in advance.
Kind regards
PowerQuest
So when you attempt to load these plugins it fails miserably too:

and the html template fails also and loads as plain text.
@pgr do you know anything about this maybe and how to solve it?
Thanks againâŚ
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Hi pgr 
Thanks for your reply.
Well I solved the second part (Failed to initialize XYZâŚ), that was a pure permission issue with the folders.
However Iâm not sure why our code (The Pastebin versions), is falling. I did manage to tweak the code so it loads most of the things I want. But as far as the original custom code I not sure what isnât playing well with the new version of SuiteCRM. 
Kind regards
PowerQuest
One wierd thing i still notice is that the editor still pre-loads the html template as text. you have to switch back and forth between the accounds before it loads the html e-mail template correctly. Everything used to work perfectly pior ro updating to this versionâŚ
Kind regards
PowerQuest