River forming across water tiles

[SpacedOutChicken]

Is there an existing issue for this?

• I have searched the existing issues

Game Version

4.14.6

Describe the bug

In a mod I'm working on, I spotted a river flowing between two water tiles.

Steps to Reproduce

The river leads up to a Natural Wonder with the following properties:

{ "name": "Dazhbog", "type": "NaturalWonder", "science": 3, "production": 3, "gold": 3, "occursOn": ["Sulfur"], "uniques": [ "Fresh water <hidden from users>", "Comment [Hot spot]", "Must be adjacent to [1] to [5] [Lava] tiles", "Must be adjacent to [1] [Mountain] tiles", "Neighboring tiles will convert to [Lava] <in tiles without [Mountain]>" ], "turnsInto": "Mountain", "impassable": true, "unbuildable": true, "weight": 10 }

I believe that this natural wonder is causing the issue.

Screenshots

You can see the river extending through the two yellow water tiles leading up to the crater.

Link to save file

RiverOnLava.json
This save file contains the river in question. It requires this mod:
RiversOfLava.zip

Operating System

Windows

Additional Information

No response

[yairm210]

The problem is actually opposite
My guess is that the river existed before the nat wonder on land tiles, and the nat wonder turned them into water tiles