Please Report ManifoldLab BUGS HERE.

[Hank]

(12-29-2014 04:05 PM)ggaliens Wrote:  "this option is not working with object height = 0 (flat object) "

The above sounds like conjecture. (actually ... I just did flat on flat just fine) Might be accurate. Would be better for you to share your "setup" with me via .wings file or write a detail prescription for repeat. Nevertheless ... I'll try to recreate.

Check my file. Try to use flatten cylinder on cube or make on your own: just remove upper or lower vertices and then try to put on the other object.