Missing or broken processors for village streets

Streets in villages have missing or broken processors - grass paths are not getting replaced by the expected blocks. On Minecraft: Java dirt paths on streets get replaced by planks if generated above water, and if not then there is a random block match with the probability of 10% replacing the paths with grass blocks. Neither of that happens on the bedrock edition. See attachments for actual and expected behaviour.
Steps to reproduce:

1. Locate a non-desert village

2. Observe the village streets. They are made of uniform dirt paths, even when above water

Expected behaviour:

Dirt paths get interchangeably replaced by grass blocks. If above water they get replaced by planks.

Actual behaviour:

Streets in villages consist of only dirt paths, that never get replaced by any blocks under any circumstances.