after some update I am missing label inputs for selectors and I can’t name selectors with friendly names. They were gone with no reason.
Second issue what I have is with js in full code editor. If I edit CSS tab, everything is saved properly and works, but in case If i fill some script (i tried jQuery and even vanilla JavaScript) it is not saved and after closing and reopening MT the tab for JS in full code editor is empty.
I checked permissions but everything other works fine.
PHP: 7.4.12
WP: 5.5.3
MT: 6.3.3.7
Hosting: VPS Linux on Plesk
Regarding the friendly labels, click the chain/code icon to the right of the selector code field when targeting an element to unsync the code/label. I suspect you clicked that by accident. It’s a bad UI setup, which I will fix in the next major release.
You need to use the keyboard shortcut Ctrl+S to save JavaScript code. That will save your code and auto-reload the site. Again, this workflow can and will be improved very soon.
I hope that helps. Please let me know if you need help with anything else, or my suggestions don’t solve your issues.