So I did the following:
I had a TVP-project of 1024x576 (about 6MB) wich I resized to 2048x1152:

After TVP did it's calculations, it ended up with a scene full of added exposures which weren't there in the original. When I select these frames and hit 'recompute' (through either 'Layer>Exposure>Recompute Exposure' or the Animator Panel) it won't work. I don't get the original timing of my instances back...
As a consequence of this I am left with layers that are not very manageable because of all the exposure (many of which are exact copies of each other) and a huge file on my hard disk when I save it: +400 MB !!

So what did I not see, or do, right ?
I've noticed that this problem does not occur when the "Resize to New Size" box is unchecked...
Help me out please, please !