Overlap between satellite map layer and geosjon layer

[belopot]

I'm trying to add both of satellite map layer and geojson layer.
I used HereWebTileDataSource for satellite map and VectorTileDataSource for geojson.
The problem is to overlay between two layers

In the case zoom is 18

In the case zoom is 20

As you can see through two images above, in the case zoom is 20, gejson layer disappear

This is my code to add two layers

Any advice?
Thanks

[nzjony]

@belopot , can you try adding maxDataLevel: 20 to the options you pass to the VectorTileDataSource constructor?

[belopot]

Thank you @nzjony