When zooming in on a section of page, the entire area goes blank and only reverts when zoomed out.
Hey Cameron, thanks for reporting! This may be related to our Hi-Res option. If you disable "Hi-Res" (toggle in the bottom-right corner), do you still have this issue?

If this fixes the issue, could you send the PDF and/or project name to support@zztakeoff.com so we can do some testing on our end to fix/reproduce this issue?