I have found !!!
It has no relation to FontAwesome 4.7 from CB.
The problem came from the CSS coding of files in the Joomshaper Helix Ultimate template.
There is a Unicode code call error. Maybe Font-Awasome changed them and Jommshaper didn't update them.
Regardless, here's the solution if it happens to you:
Go to the directory of your template Helix Ultimate - file
fa-v4-shims.css
Search
.fa.fa-pencil:before and modify the unicode with f040
.fa.fa-trash-o:before and modify the unicode with f014
font-awesome.min.css
We also find .fa-pencil:before in this Css file. Update the unicode.
There is no trash-o in it.
Empty your caches and plugin caches and we're good
Thank you for having me on the Kyle track! I had absolutely no idea how F-A works!
I could understand that CB uses F-A 4.7 and will not or will not use F-A until you have reviewed a whole set, bootstrap and companies.
Is it still current? Do you have this project in progress?
Thank you !