Please post here if you figure out the Drobo update. I have a 5N and have the same issue, but in the meantime, I’m going to try the Pi 3 route and see if that will function as well. I tried using OneDrive as an alternative to my OC client constantly crashing, but the OD performance pushed me back to local space after one day. Thanks!
I have deleted the owncloud app on my drobo using resilio instead.