OC 9.0.5 will be release soon where a couple of things regarding external storages will be fixed:
If you have time to test the release candidate would be great, if not, wait for the release and see if the problem still exists. If so, and you haven’t any more qualified responses here, please open a bug report on GitHub · Where software is built (developers are still more active there and issues are better tracked). Don’t forget to link your issue here.