I have just updated our community to 4.4 & everything appears to be working apart from Reactions. I know it's a minor thing but I'd like it to work!

So when someone tries to use a reaction we get the message "Sorry, there was a problem reacting to this content" with an OK box to clear.

All groups have permission to use reactions, and I've even tried disabling reactions completely & then re-enabling them, but it hasn't made a difference.

Anyone got any ideas or should I open a support ticket?

Please open a support ticket, and we would be happy to take a look at this and see what is going wrong there.