The problem is confirmed. Thanks for reporting it.
Some previous changes caused more controls to be placed on the wizard page than before. That forced the options further down, and out of the window, so the options are not seen.
I will fix this today and a new build be out in a few days. In the mean time, there is a work around:
Temporarily change MC's font to a small value. The option is at Tools > Options > Tree & View > Select font...
Set the font to 6 (note that the drop down list may only list as low as 8, but you can type 6 in the box). Also note that this may depend on your screen resolution, so you may need to experiment with different font sizes to bring out the options.