PC Yey Hardmode, let's go to the Hallow! wait what

[Simple Shawn]

I'm doing my first expert playthrough, gathered the good stuff etc... I defeated the Wall of Flesh, got Amarok well you know. I was then searching the Hallow biome first at west then at east, I only found a Hallow background in the west side of the map, so I used TerraMap and discovered something...View attachment Hi.png
The Hallow biome is cut by the jungle (notice the little Hallow biome cave starting the V), is it normal? Can I fix it?

-- Edit : Or should I restart another world?
-- Edit 2 : I tried to mash some more altars but no success, I tried to mine mud and stuff to replace it & replant trees in the biome where the background was Hallow but no success. But I discovered some pearlstone blocks in the ground

 

[Dapling]

You can buy hallowed seeds from the dryad and craft them into holy water to spread it yourself.

 

[Simple Shawn]

You can buy hallowed seeds from the dryad and craft them into holy water to spread it yourself.

Ah like is the Clentaminator also possible? I'll try after the mecha bosses, yeah idk why I didn't think of that anyways thanks for the answer :3

 

[Dapling]

Ah like is the Clentaminator also possible? I'll try after the mecha bosses, yeah idk why I didn't think of that anyways thanks for the answer :3

it is possible, you just need to make sure that your steampunker is living in the hallow and she should sell Light Blue solution which spreads it