Handwriting sync error between iPad and Mac

I used to handwrite points in margin note on my iPad. But when I open that notebook in macOs, I can’t see anything. It is just blank (attaching screenshots below). Please help me.

I am using apple pencil kit engine in latest MarginNote on my iPad and Version 3.7.21 on macOs Mojave. Both devices are completely synced multiple times.

@Support-Team
@Relight_Support-Team