Question re Subscribe Buttons bbPress

I just realized that all my Subscribe buttons to my forums are missing with the exception of Movie Reviews.

I realize that I have subscribed to all the other forums but it seems to me that when I subscribe, the "Subscribe" button becomes 'Unsubscribe".

I don't have Subscribe or Unsubscribe at

or any of the others, until you get to the bottom forum which is Movie Reviews.

Where are my buttons?

I tried removing all Custom CSS, thinking that I have hidden them somewhere but it didn't make a difference.

Also, when going through my Custom CSS file I found a response from before re Subscribe button as follows:

/* Forums Subscribe Link - make into button */
.entry-content #subscription-toggle a {
background: #fff;
border: 1px solid #bbb;
color: #555;
display: inline-block;
text-decoration: none;
padding: 5px 8px;
margin-top: 10px; }
.entry-content #subscription-toggle a:hover {
background: #ededed; }

Can't find this button anywhere.