bug, not more spaw dig piles in my bonus stage

[hollow pond]

Hellow , i have al from yesterday problems that in the bonus stage not more spaw the dig piles. i have now al 4 times bonus stage but every time its missing the dig piles.

[fervent mortar]

It's a 70% chance to appear.
My first 4 had it, and then the next 3 didn't
luck comes and goes

[spring parcel]

so many people just assume its a bug and immediately go to #1170057560028618933