I guess this bug will never be fixed.
Let me know your bitcoin address to know if you bitcoin address are still holding some bitcoins..
And also try to check the preferences and check the good fee here https://bitcoinfees.21.co/
or set it into 0.0014 and try to send your coins to other bitcoin address..
If not working you can also try this one goto to addresses and look for the address with bitcoin and right click and choose send from and try to send it to your new bitcoin address you own..
I had a small test transaction that seemed to block transfers of my remaining coins.
In the end it cleared itself after a couple of days and I was able to move my coins again.