CPU 100% after every reboot and login, multiple launchpadlib.cache.* in /tmp

[crysman]

Recently with 15.10 my Xubuntu started to behave strangely in a way that just after every reboot and login, CPU hits 100% usage and keeps so for some half a minute.

If I run top/htop, I always see many (aprx. 12) lines with "/usr/bin/python3 /usr/share/apport-gtk" - see the attachment.

Why?

Is it a python problem? apport problem? Some other problem?

This is quite new behaviour, some month ago I believe it was not like this (that is why I noticed, after all)

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: apport-gtk 2.19.1-0ubuntu5
ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
Uname: Linux 4.2.0-23-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Jan 13 10:36:38 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-11-06 (67 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: No upgrade log present (probably fresh install)

[crysman (crysman)]

I've noticed several "launchpadlib.cache.*" directories in my /tmp while all this is happening...

[crysman (crysman)]

This problem is still valid and unresolved, I attach a fresh screenshot.

Any ideas why this could be?
May it be because of the encrypted /home?
Or... ??

Thanks