Convert lines to fill erases random lines?

[Romanpen]

Hey, So i've posted on this subject since early 2020 and have yet to get an answer. Why does using the "convert lines to fill" delete random lines? I'd like to make a background i'm working on lag less and I figure if its all fill there's less to compute but again, it deletes a good quarter of the lines.

[n. tilcheff · Accepted solution]

Flash has always done this when there are 3 or more lines converging or intersecting.

To avoid, use Object Drawing, Convert lines to fills first and then break apart.

[Romanpen]

Thank you!