Write permission problem with exfat drive

Hello. I encountered a problem today regarding the permissions of an external drive. Im using an iMac with Sierra. I was testing a round tripping workflow from Media Composer (8.4.4). I imported an AAF with a single clip, An AMA-linked Sony FS7's clip. I did some grading and when I went up to the Delivery page and tried to Render it to my external drive (On which I render from resolve a short film a few days ago with no problem), it gave me this error:

DaVinci Resolve is unable to render to the selected path "/Volumes/(me hd)/effect workflow aaf/resolve round trip" as it does not have write permission. Please ensure that DaVinci Resolve has write permission for the path selected and the first drive you list in Preferences.

The render setting I used were:

Screen Shot 2017-09-27 at 2.03.24.png (48.7 KiB) Viewed 1926 times

I tried an Avid AAF and got the same results. I tried changing the render drive to my HDD and got the same results. Only when I changed the setting from "Individual clips" to "Single clip" it did the trick.

Thank you very much. Yuval.

Resolve 15b 3. Win 10. Fresh install of resolve: dreaded, historically repeating, (note posts about this from years ago) ubiquitous "path permissions" problem. It simply will not change paths in project settings (although it will in preferences) from a drive which is no longer on the system. It keeps telling me I don't have permission. Restoring the offending (removable) drive to the system makes the error go away, and yet browsing and setting the path doesn't change it (although with the drive connected it doesn't error). Removing the drive obviously reverts to the error. Such a pity, as this doesn't give me any confidence in utilizing Resolve for mission critical projects -- I was given this project to work on and welcomed the opportunity, but with a few other rickety issues I can't help but think it's still not quite there. I believe it will be good one day!

I'm sure the post production teams behind the countless feature films made with Resolve also hope it will be good one day. Try not using the beta versions if you have a mission critical project.

IMHO, the developers should look into that error message and make a difference between a missing path or missing permission.