Layer bug: .PSD file to Adobe Animate

Hello everyone,

I'm recently working on an animation project

require crayon brush texture.

So I used Sketchbook pro for the drawing and tried to animate them in Adobe animate.

 What happened was: when I tried to open the.PSD file exported from Sketchbook, layers that overlap merge each other's colours in it. (not a clean layer)

Does anyone ever have the same issue when trying to animate a.PSD file?

P.S

No problem opening the .psd file exported from Sketchbook, every file I tried shows cleanly separated layers, so I assumed the issue happens during .psd <------>Adobe Animate.

It's such a pain in the S trying to remove those merged spots layer by layer...

Please help me...