custom css issue

Hi, my custom css was working perfectly fine. I had no need to utilize it for a few months however I realize its some stuff I want to change pertaining to the site appearance. So I decided to go into appearance -> customization and custom css… I now realize when I try add some custom css its no longer working, even when I press publish. All of the custom css I had before is still working but if I add new custom css its not working. I even tried to copy a custom css that I already had what was already working. I removed it and try to retype that exact css again but when I type the same css it wont work. So something is going on where my new css entries arent working… Please help… I have litespeed cache I tried resetting the cache… I tried disabling css minify and css combine… I really dont know what to do and I need to make some changes to the site appearance ??