When faced with Steam error code E87, check the server status, delete the contents of the package folder, or set the correct date and time.

Are you unable to open Steam profiles on your PC and see Failed loading profile data error message? Some users have reported that whenever they click on their profile ...

It seems I have the same problem, happened this morning (UK time) and not yet found a way to fix it, despite modifying my Firewall settings and deleting the .blob file. I'm using McAfee, so cannot ...