[MCPE-43896] I can't jump at some y coordinates

I can't jump at the y coordinates 1 and 2 and it shows 0 if I am on the 1 coordinate and 1 if I am on the 2 coordinate

Linked issues

Thank you for your report!
We're actually already tracking this issue at MCPE-43601, so we will resolve and link this ticket as a duplicate.

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