export progress stuck

[getho]

3 days ago I discovered the direct export command (as opposed to batching stuff to photoshop). 

It's already failed twice. Today it's stuck on 414 out of 518, and failed to proceed to the next export when I cancelled it.
This sort of productivity feature needs to be totally robust. Nobody likes having to do stuff twice, especially when it is such basic stuff as exporting.
If you can't guarantee it wont crash, take a leaf out of media encoder's book and save the bloody exports so that they're still pending when you start a new session! This new bridge is hopeless.