Nemo crashes often...delay...window:"No such directory"

For a while now, Nemo has seemed fairly fragile; I think at least once each session it becomes unresponsive, and shortly disappears. Maybe 4-5 minutes later, a window will appear saying "No such Directory" (or some such wording). I don't think that the window identifies itself as belonging to Nemo, so perhaps it does not - but it never appears except after a Nemo crash.

This time, I was opening a file - "Open with...", as this is a new Lubuntu install, and I was "training" Nemo ("Other Application"..."Set as Default") that a .jpg file ought to be opened with eog (Gnome's image viewing program), and not with Firefox, with which it thought it ought to open it. I clicked on "Set as Default", and then on "OK". The "Open With" window disappeared... and so did Nemo.

Since I practically just started using the computer this evening, I thought it possible that Nemo might crash again, so I have started it from the Terminal, and if it crashes again, I will add the terminal output to this report.
While I was in the middle of ubuntu-bug and then restarting Nemo, there as usual came the "No such directory" window. If it comes back, I may screenshot it and include it as well, although I don't really suppose it will be useful...

By the way: when I re-started Nemo, I went to the picture and right-clicked on it; its default opening application had been changed to eog, so the crash happened AFTER the opener had been changed from Firefox to eog, but BEFORE Nemo handed off the file to eog (picture was never displayed).

[with the re-opened Nemo, I right-clicked on a .png file, and "Open with..."'d eog --> "Set as Default" ---> "OK", and everything was fine ==> eog opened the picture. Nemo is still up.]

-Scott Jacobs

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Nemo version: 3.0.6-2

scott@scott-ASUS-M2N68-AM-PLUS:~$ uname -a
Linux scott-ASUS-M2N68-AM-PLUS 4.8.0-26-generic #28-Ubuntu SMP Tue Oct 18 14:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
scott@scott-ASUS-M2N68-AM-PLUS:~$ lsb_release -dsc
Ubuntu 16.10
yakkety
scott@scott-ASUS-M2N68-AM-PLUS:~$ echo $DESKTOP_SESSION
Lubuntu
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ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: nemo 3.0.6-2
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CurrentDesktop: LXDE
Date: Fri Oct 21 19:44:21 2016
InstallationDate: Installed on 2016-10-20 (1 days ago)
InstallationMedia: Lubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.1)
SourcePackage: nemo
UpgradeStatus: No upgrade log present (probably fresh install)