#RC#
It is common for the interface to lag during periods of intense blockchain network activity. The metamask-extension smart contract is highly secure, but it requires precise input parameters to function. A proven solution is to use a private RPC URL instead of the default public provider.
Many rejected transactions are caused by the max fee being lower than the base fee. A mismatch in the chain ID settings will prevent metamask-extension from connecting to the network. Most minor glitches are resolved automatically once the network traffic subsides.
Sometimes a simple delay in block finality can make a successful tx look like it failed. A conflict between the dApp and the browser’s storage can cause the interface to freeze. A mismatch between the wallet’s gas estimation and the contract’s needs can lead to failure.