Some users are having issues with EOS transactions that are getting reverted after being broadcasted. This causes problems especially with deposits and withdrawals from exchanges.
BPs have identified potential cause of the network instability and are working together to fix. Based on EOG Go's research, the situation has become better over the past 12 hours.
It is believed that the issue is caused by over-saturated peering node that resulted in cpu hogging, which affected the peering betweeen mainnet BPs.