The "like" function on the forum when using mobile is finnicky. The attached image will help explain. When you like a post it removes one other user's like (at least from the perspective of the one liking the post). You see in the "First like" panel, it should say "You, Rene12, Lee and 3 people reacted" since there were already 5 reactions before I liked it. Then I unlike it and we're back to 5 reactions. Then I relike it and it displays properly. This doesn't happen every time liking a post on mobile, but often, and a few users have brought it up.