Xbox Live users may notice issues when trying to use the service on Xbox 360, and those playing GTA Online through Xbox One and PS3, there are a few issues as well.
According to the XBL Status page, usage is limited for downloading purchased items, joining other Xbox Live members in online games and there are matchmaking and Smartglass application issues as well.
Folks are also having difficulty signing into Xbox Live.
Microsoft is on the case now, so hopefully all issues will be resolved soon.
In the meantime, keep an eye on the official status page.
Rockstar said there are also error messages being reported by users when trying to log into Rockstar Cloud on Xbox One and PlayStation 3.
The developer is also investigating reported problems accessing certain GTA Online features on PS4.
Likely a heavy load issue, what with Heists launching today.
You can keep up-to-date on the status through the Rockstar Support page.