Mounting exfat drive as read/write
Are the permissions correct? You can check this by command 'sudo nautilus'. Ensure user and groups have read/write permissions. Save. Reboot. –
I thought, that I checked every possible setting, but it turned out, that I forgot about most basic thing, changing permission. I opened nautilus as sudo user, changed permission. Without rebooting I haven't seen any change, so I rebooted, and drive mounted like a charm. Thanks for help.