Flattening of water bodies

Hello, and Happy New Year 2025

In my project, I would like the surfaces of the water bodies to be flattened over a terraforming heightmap (terrrain mesh).
Some water bodies, which are missing in the default scenario, I can easily transfer them into the scenario and in Dev Mode I can also see such water surfaces perfectly leveled. After having compiled, inside Dev Mode, a .bgl file without errors, upon exit the changes are lost.
So, I assume that some parameter is missing, my question is which one?
I can share a copy of the project if it is useful to understand the problem.

Regards




Continuing to work on this project on MSFS2024 Beta 1.4.13.0 using the 1.4.4.0 SDK. While I appreciate the improvements in this release, I have encountered a couple of issues that I hope you can address:

1. Flattening water bodies on terraforming heightmap:

  • I tried flattening water body surfaces on a terraforming heightmap (terrain mesh). While the changes appear to be smoothed correctly in Development mode, they continue to be lost after compiling the .bgl file and closing the project.

  • I suspect a parameter is missing, but I’m not sure which one. Could you please provide me with any guidance on what could be causing this issue or what additional steps I should take to ensure that the changes persist? ​

2. Behavior of the “Force Elevation” attribute:

  • Importing a .shp file with water body polygons into the project, I noticed that the “Force elevation” attribute is not initially set. However, after generating and saving the .xml file, the attribute is automatically introduced, even when it is not needed.

  • This behavior seems undesirable and could potentially be a bug. Could you please confirm if this is expected behavior or if it is indeed a bug? If the latter, are there any workarounds or fixes planned?

I have attached a copy of my project and relevant screenshots to illustrate the issues. I hope this information is helpful and look forward to your feedback.

Thank you for your time and support.
Best regards

I am currently working on this project in MSFS2024 Beta 1.4.14.0 using SDK version 1.4.14.0. While I have made some progress (the surfaces are flattened), I am encountering a recurring Crash to Desktop (CTD) issue when working in Dev Mode.

Issue Description:

  • My project includes a large .XML file (~9 MB) that manages water body polygons.
  • When working in Dev Mode, the simulator crashes unexpectedly, after some operations.
  • I suspect that the size of the .XML file might be contributing to the CTD, but I am unsure if this is the root cause.

Questions for the Development Team:

  1. Is there a known limitation regarding the size of .XML files used for water body polygons in MSFS2024?
  2. Could the large file size be causing memory overload or instability in Dev Mode?
  3. Are there best practices for handling large .XML files to prevent CTDs?
  4. Has this issue been reported previously, and is there a workaround or planned fix?

I have attached a CTD report for further analysis. Any guidance or insights would be greatly appreciated.

Thank you for your time and support.

Giovanni

CTD_waterXML.zip (5.3 KB)

Hello @ClevererElm8055

Please create a dedicated bug report by following these guidelines:
How to report a bug or crash - [MSFS 2024] Bug Reports - MSFS DevSupport

Regards,
Sylvain