Alternative Animation plug in? As AVI ouput at 1080HD never works (2000 frames)

Whoops you did. The Extension Warehouse category is for discussion about the EW, it’s issues etc.

IF you wish to discuss extension then the Extensions category is the one.
But this thread seem to more discuss Technical Problems with SketchUp’s native animation export which might below in the Technical Problems > SketchUp sub-category.

If you search that category on “Windows process limits” you may find some old discussions. One you’ll find is …