5.1.1 posed 2 new bugs which 5.0.9 RC didn't have

1st bug: Restoring by a single click on tray icon doesn't work (probably after a 1st worked restore/re-minimize). Neither left, nor right click works in this "stuck" state. Only way to restore is to kill the process. (I've also tried killing Explorer then restarting it but then I totally lost the WinSCP tray icon).
2nd, After a successful restoration from tray icon, I did a couple drag and drop while a transfer is being made, it just hang, no response.

I'm not sure if the transfer resume bug is still there in 5.1.1 (5.0.9 RC had this, when a file is being transferred and somehow the connection stalls, transfer status shows Query error and unless I right click on it and hit Show Query it doesn't resume by itself, even though all the resume without user interactions settings have been selected).

5.1.1; Even when I turn off "minimize to system tray" option, and then minimize to taskbar, there's a systray icon visible. When I move the mouse over it, it disappeared and again WinSCP froze. I couldn't restore from the regular taskbar even. Looks like there seems to be a serious problem with either minimize/restore or taskbar/system-tray operations. 5.1.1 is totally unstable, switching back to 5.0.9 RC.

I cannot reproduce this. It works for me.

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.