Not sure what version you are using, but it seems that the later versions are a bit buggie in several ways as you are experiencing. If you are interested, Here is a couple of very stable versions from the past that you can try.
OldVersion - Newer isn't always better ! Version 4.12.3 or 4.12.6 are probably the most stable versions without the useless Bittorrent attempt. Hope this Helps.