I don't know if this is a glitch or just something that I'm experiencing, but I can't always open hidetitles, and it's kinda a pain in the butt.

If you edit a post or are previewing a post, you can't view it until you post/refresh.

Just refresh and then try it, because it's more that the whole file likely didn't load due to being altered

It's happening in my blog, and even after refreshing it doesn't work.

That will be because the code for the spoilers isn't supported in blogs :)

Well that makes sense =) after a few hours after posting this I assumed that but I wanted to be sure. Thank you Jelly ^^