Background of the issue:
I am working on a site under development and trying to add a new post translation using WPML. I noticed that the default WPML icons, such as the '+', have been replaced by random characters like 'k'. I was using WPML 4.6.3 and updated to 4.7.1, but the issue persists.
Symptoms:
The default WPML icons are replaced by random characters.
Questions:
Why are the default WPML icons replaced by random characters?
How can I fix the issue with the WPML icons?