Extrude filament glitch

When I click the extrude filament button without changing the default length of 10mm it extrudes more than 10mm. But if i select 10mm from the dropdown menu it then extrudes correctly.

Also can we get an option change the filament speed. The speed is too fast for it currently.

@kirby This has been reported already and a fix is coming in the next release which is in the late stages of testing.

Thanks for reporting it