43ee9e5 created the issue

I queued about 10 big files, commonly I transfer one file at a time. So i change the number at the right bottom to '1' (Maximum Transfers / Transfer Window). So now one file is uploading...

When i click the down arrow (textfield has value =1), suddenly al queued files start to upload. In the background i guess the counter will be set to '0', but the GUI says still '1', when clicking up and down the internal counter does get messed. Restarting the application will do...

Also while uploading files and changing the maximum allowed it got messed up. Little issue but worth fixing it.