Unable to pick up the TerrainLayer when operation is 'terrain+draw' and zoom is greater than 19

[Paweled]

I use a similar scheme，
https://deck.gl/docs/api-reference/extensions/terrain-extension

My maxzoom is set to level 21. When zoom is less than or equal to 19, I can pick up objects normally, but when it exceeds 19, I can't pick up anything

After level 19, it can no longer be picked up