That is very strange @SciFiKriss,
I tried to regenerate the issue but couldn't make it. Please, once check if you are able to receive the activity updates on your personal wall ( profile activity / site-wide activity ). You can also debug this issue by activating any default theme of WordPress and deactivating other plugins.
If the issue still exists please check if you are able to get any activity updates when rtMedia is deactivated.
Thanks,