Steps to Reproduce:
1. Start Minecraft Bedrock Beta 1.15.0.55 on a Windows 10 Pro PC V. 1909 Build 18363.657
2. Create world seed: Coastal Village (-1813740965); Survival Mode; Normal Difficulty; Infinite Size; world must be created on Beta v1.15.0.55 and affects v1.16.0.51 Beta.
3. Find a village with farmer villager at a garden which is framed by wood blocks and has a composter.
Observed Results: Farmer villager bounces in front of composter. It appears the villager cannot jump one block, see attached video.
Expected Results: farmer villager could jump one block to reach the composter.
Workaround: place stairs under the bouncing farmer.
Another video demonstrating issue on Win 10 when opening 1.15 world that's been converted to beta 1.16.0.51: https://1drv.ms/v/s!Apr73Jy6zWsqsjliE7wBVyjLfh7V?e=E19P5t