Launcher crashed to desktop on login - Ubuntu Mate 64bit

[Ygarl]

Hello,

Well... installed from scratch on my system, and I'm getting CTD when I load, with following errors

/regnum$ ./rolauncher
/usr/share/themes/Yuyo-Dark/gtk-2.0/Apps/libreoffice.rc:40: Unable to locate image file in pixmap_path: "Entry/entry-border-bg-solid.png"
/usr/share/themes/Yuyo-Dark/gtk-2.0/Apps/libreoffice.rc:43: Background image options specified without filename
/usr/share/themes/Yuyo-Dark/gtk-2.0/Apps/libreoffice.rc:49: Unable to locate image file in pixmap_path: "Entry/entry-border-active-bg-solid.png"
/usr/share/themes/Yuyo-Dark/gtk-2.0/Apps/libreoffice.rc:52: Background image options specified without filename
*** Error in `./rolauncher': free(): invalid pointer: 0x00007fc3053add38 ***
Aborted (core dumped)

I've certainly not heard of THAT one before, and I've been playing Regnum since - well 2006 or something, and on Linux that whole time.

Any ideas?
I've got no logs in the "Live" dir either, which is strange. Also, the libs dir in live is also empty. Is that odd?

As an aside: I can't read my login or see what I've typing in the login screen, as the background it totally white on white.
I can "highlight" it, as it I want to copy it, which of course inverts the background to black but that seems a bit odd.