In ebuild, dropbox_py3 should be removed because this file doesn't exist in the version. The syncing is OK for this version (see problem here: https://forums.gentoo.org/viewtopic-t-1085012-highlight-dropbox.html)
UPD.: Version 56.4.94 is the last stable (2 week ago, but I did't test it). https://www.dropboxforum.com/t5/Desktop-client-builds/bd-p/101003016
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a33b8f8e0592e3bd2538e056171229dca8f4a21a commit a33b8f8e0592e3bd2538e056171229dca8f4a21a Author: Jason Zaman <perfinion@gentoo.org> AuthorDate: 2018-09-24 03:10:25 +0000 Commit: Jason Zaman <perfinion@gentoo.org> CommitDate: 2018-09-24 03:14:23 +0000 net-misc/dropbox: bump 58.3.88 Closes: https://bugs.gentoo.org/665586 Package-Manager: Portage-2.3.49, Repoman-2.3.10 net-misc/dropbox/Manifest | 2 + net-misc/dropbox/dropbox-58.3.88.ebuild | 121 ++++++++++++++++++++++++++++++++ 2 files changed, 123 insertions(+)