CO_Avanya

The Microsoft Store version is the same version as you are already playing on Xbox. If you're looking to mod the game, then you will want the Steam version (which can be bought from Steam or Paradox Plaza among other places) or the Epic version. Steam comes with the workshop, which makes modding easier, where Epic requires you to find and install mods manually.

Unfortunately we are unable to provide support here on Steam. The discussion forum here just aren't suited for that. :/

Our support team would be happy to help you solve this on our official support forum. Please include as much detail as you can about what happens, when and how often it happens. Then we'll get to the bottom of this faster. :)

https://forum.paradoxplaza.com/forum/forums/support-bug-reports.879/

Originally posted by Pectus Solentis: The error window says "VirtualAlloc remapping failed".

This is definitely the game running out of memory. You can increase the size of your pagefile to allow more flexibility.

If you use mods, then I would also recommend disabling any you don't absolutely need while working in the editor. Most of them are designed for the simulation and don't work correctly in the editor, so a mod acting up in the editor might cause errors (even if you don't see them pop up), which uses additional memory causing the crash.