Steam login fails for users with 'loading user data' error

Steam users worldwide are unable to log in due to a "loading user data" error. Downdetector reports peaked at about 500 in the US and 450 in the UK, with users in Germany, the Netherlands and Russia also affected. Valve has not issued an official statement.

• Downdetector reports peaked at about 500 in the US and 450 in the UK
• Users in Germany, the Netherlands and Russia also report login failures
• No official incident on Steam Dashboard — likely a bug rather than an outage