Hi Again Gil,
OK so 12l of wine and a lot of cussing later I have a few observations and a workaround (and a headache).
First of all my 3.6.12 version files were in fact data layer imports and I imagine that is why importing them showed no effects on the timeline and since the models do not 100% correspond I did not get the playback I wanted. This is however a mute issue as I think very few people actually want to import files a far back as this and your considerable abilities and talents would be wasted working on this.
Once I determined the previous I started importing the actual LOR files again. This gave me all the effects but try however I would I could not render the pixels.
Mega Tree -blank
Strand1 -blank
Pixel 1 to xx -effects
Zero output unless I actually edit one of the pixel lines where after it would render.
Then a brainwave, I put a effect on the strand line (in this case a simple OFF for the whole duration of the song) and the whole strand of pixels would render without a problem. This solved all my import issues and I now have my full 2014 show ported to the current version of Nutcracker running beautifully on my new planned layout.
Thanks for a wonderful tool.
Kind regards
Charl