After spent the whole Weekend in a rough and depth testing with the New Village Structures both naturally generated and manually generated. I found little but very significant issues in some Buildings that affects very specific aspects like Villager Spawning, access to Work Stations, Building Inconsistencies and Lightning.

Besides highlight the issues I will also provide solutions to these problems.

So let's begin

Plains Village

- Shepherd's House

plains_shepherds_house_1.nbt

Both Loom Blocks are facing towards the opposite direction.
(This issue was introduced with the recent fix to a Bug that made Loom Blocks face to the wrong direction - MC-137761 ).

Solution: Update the Looms by just placing them again.

Savannah Village

- Library

savanna_library_1.nbt

Since the Height of the Adult Villagers is 1.95 Blocks they can't walk through a space of 2 Block High when there's a Carpet, in this Building the Librarian can't access the Lectern because there's a Carpet that blocks it's pathfiding.

Solution: Replace the Carpet and the Acacia Planks underneath with Wool Blocks.

- Mason's House

savanna_mason_1.nbt

Last time this Structure got Updated it actually didn't save properly in the Structure Files, the result was that the Mason's House now has a fragment of Roof missing when it generates.

Solution: Place again the missing Acacia Stairs and the Grass Blocks from the ground, then assign the Proper Range to save completely the Structure.

- Shepherd's House

savanna_shepherd_1.nbt

Loom Block is facing towards the opposite direction.

Solution: Update the Loom by just placing it again.

Snowy Village

- Small House #8

snowy_small_house_8.nbt

Each Bed generated means a Villager belongs here, with that said the amount of Villagers has to be equal to the Beds. But here is not the case due a missing Jigsaw Block that grants the spawning of a Villager here.

Solution: Add the missing Jigsaw Block back and then save the Structure again.

- Mason's House #1

snowy_masons_house_1.nbt

Same problem as the Savannah Library, the Carpet in this Building doesn't let the Mason Villager access to the Stonecutter.

Solution: Replace the Carpet and the Spruce Planks underneath with Wool Blocks.

- Shepherd's House

snowy_shepherds_house_1.nbt

Both Loom Blocks are facing towards the opposite direction.

Solution: Update the Looms by just placing them again.

Desert Village

- Medium House #1

desert_medium_house_1.nbt

This Structure generates with 2 Beds, but there's only 1 Jigsaw Block that spawns a Villager, meaning one Jigsaw Block is missing for the other Bed.

Another issue here is that the current Jigsaw Block turns into Air instead of Smooth Sandstone, leaving a hole inside this Structure after spawn a Villager.

Solutions: Include another Jigsaw Block that spawns a second Villager for the other Bed and make sure both Jigsaw Blocks turns into Smooth Sandstone.

- Shepherd's House

desert_shepherd_house_1.nbt

Both Loom Blocks are facing towards the opposite direction.

Solution: Update the Looms by just placing them again.

Taiga Village

- Medium House #1

taiga_medium_house_1.nbt

Just like the Desert Medium House #1, this Structure includes 2 Beds but only 1 Jigsaw Block can generate and only let the spawn of a single Villager, instead of 2 to match with the Beds number.

Another problem with this House is that it has an Underground Basement for the second Villager (A very cool idea) but when it's naturally generated it will be obstructed by Dirt, Stone or any kind of Block that will normally generate, this means that the Terrain Generation will override the Air that belongs in this Structure.

Solutions: First for the missing Jigsaw Block issue, just simply add that Block with the Villager spawning.

Second is that with the addition of a Villager here is necessary to make sure this Building generates untouched in the underground part to prevent suffocation, maybe adding some Structure Voids can prevent the generation of the natural terrain blocks, not very sure about this solution, since it seems like Jigsaw Blocks or Structure Blocks Generation always gets affected by the Natural Generation.

- Medium House #2

taiga_medium_house_2.nbt

Missing Torch in the upper Room, causing low levels of Light.

Solution: Add a Torch

- Medium House #3

taiga_medium_house_3.nbt

Missing 2 Jigsaw Blocks with Villager spawning for both Beds.

Solution: Add the 2 Jigsaw Blocks that are missing close to each Bed.

- Medium House #4

taiga_medium_house_4.nbt

Missing 2 Jigsaw Blocks with Villager spawning for both Beds.

Solution: Add the 2 Jigsaw Blocks that are missing close to each Bed.

- Fisher Cottage

taiga_fisher_cottage_1.nbt

The Building is flooded with Water in the inside.

Solution: Remove all the Water, but only leave it in the space where it belongs.

- Library

taiga_library_1.nbt

Like the Savannah Library, this one has a Carpet that doesn't let the Librarian interact with the Lectern.

Solution: Remove the Carpet.

Consistency Issue: The external Decoration of the Cartographer's House seems to be the only one completed:

As you can see it has a Spruce Trapdoor under the Grass Block

But this is not the case in the Library, making it look incomplete:

Solution: Just add the missing Trapdoors

- Weaponsmith #1

taiga_weaponsmith_1.nbt

Consistency Issue: Just like the Library it's missing the Trapdoors under the Grass Block Decoration.

Solution: Remove the top Torch and split it to the sides, at the top of the Grindstones and then add the missing Trapdoors.

- Shepherd's House

taiga_shepherds_house_1.nbt

Not only the Looms facing a wrong direction, but we also got more Carpet Issues... It seems like there's a Balcony that cross the Center of this Building with only a 2 High Space and it doesn't let the Shepherd Villager pathfind correctly.

Solutions: Replace the Carpet and the Spruce Planks underneath with Wool Blocks and update the Looms by just placing them again.

And those are all the Issues I found so far in all the Village Structures. I just added all the problems together to use this whole Thread as a definitive Solution to this group of little issues, hopefully is easy and comprehensive to understand for the Developers and hopefully all of these Issues gets fixed before the Official Release, Thanks.