Lately I have noticed that my pumpkin farms are working correctly, but the melon farms of the same design are not. Melons will not grow under observers/pistons but pumpkins will.

To reproduce:

• Plant a pumpkin stem under a downward facing observer
• Place downward facing pistons adjacent to all four sides of the observer where the pumpkin can grow with redstone placed on the observer and pistons
• Create same set up for melon
• Pumpkins will spawn, the change in stem position will activate the observer and the piston will activate harvesting the pumpkin
• The melon farm should work the same way but won't

To confirm, I set the random tick speed to 1000. Pumpkins spawn with high frequency, melons did not spawn at all. Melons spawn normally when nothing is placed above the stem

Expected result - both melons and pumpkins have identical spawning rules, so both should spawn under this set up.

This farm works in Java, and works for pumpkins in Bedrock, just not melons