Incorrect event parameter outputAmount is used (instead of output) in the MintSynth event emit. outputAmount is a named return variable that is never set in this function and so will always be 0. This should instead be output. This will confuse the UI or offchain monitoring tools that 0 synths were minted and will lead to users panicking/complaining or trying to mint synth again.
Recommend replacing outputAmount with output in the emit.
verifyfirst (Spartan) confirmed:
