Summary:
In Minecraft Bedrock (Preview) edition Camels cannot climb a block without jumping.

Steps to reproduce:
1. Spawn a Camel with the Spawn Egg or search for one in a desert village.

2. Look for mini mountain with several layers of 1 block in height.

3. Mount the Camel, look in the direction of the mini mountain and press the ''W'' key and direct it turning the mouse if necessary.

Observed results:
Camel can't climb up a block. Even pressing the ''Space'' key it goes up with some difficulty

Expected results:
Camel should be able to climb a block in height without even needing to press the ''Space'' key like this in Minecraft Java edition.
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I left two videos down there so you can see the differences in each edition.