Exporting selected regions in Ardour 4 Mac

How do I export selected regions with Ardour4 on Mac?

Same way as on Linux.

Next question?

Select region in editor or in region list --> open region menu --> select export option --> export dialog opens, fill accordingly to your needs --> press export button

all the way to export works great for me, but this:
I have to export many regions in several tracks, it works without plugins, but with plugins I get a noisy sound.
I can export session, selection etc and the sound is perfect. I prefer this way as it name automatically my file with the name of the region, and no need to set the options everytime like in selection export.
anybody have the same bug?