Convert lines to Fills problem?

[JonHunter]

So, I drew some shit with the Pencil tool, and when I try to convert the Lines to Fills it messes it up entirely.

Either the endresult becomes a few fills (and by few, I mean, it erases 90% of the linework)
Or it fixes it all perfectly, but fills empty areas of the drawing with a bunch of fill where there really was no intention of having there.

Either way, the real question is, why does Flash mess up my converting? Is it because I'm trying to convert a bunch of lines at once, or is this a regular problem? I feel as though I've experienced this a lot, and am very tired of it.. Anyone got any ideas?

[PyroflameGames]

You could try only converting a few lines at once to troubleshoot, but other than that I got nothing.

[Nae]

Yeah, I've had that happen before... the way I got around it was by making smaller selections of various areas until enough was done that I could select the rest and convert that. Sometimes if the stroke is too big it will go all wonky too. In that case, I do it in smaller increments. My guess is it's just too much for the app to handle, or interpret ...or something like that.