, specifically during the second session after loading a saved game.

🔥 Root Causes of Your Crash
1. Script Errors in the Mod Itself
Your error.log shows:
• Invalid trigger-type, Invalid idea token, Unknown technology, Missing loc key
• All these come from bad mod files in Novum Vexillum, not your game or other mods
2. Broken Game State Events
Many reports (including yours) confirm crashes during:
• Civil wars
• Mobilization messages
• AI declaring war (like Russia vs. Lithuania)
• Peace negotiations
These trigger events or decisions that are incorrectly coded or missing required references, leading to a CTD (Crash To Desktop).
3. Corrupted Mod Files
Even if the mod itself is functional, Steam may have delivered a corrupted version (known issue with Paradox Workshop mods). This leads to:
• Crashes during loading
• Crashes on a fixed date (e.g., 2006, 2010, 2012)
4. Too Many Units or Active Wars
If you’re playing a modern-day scenario with 100+ countries and 10+ wars, the HOI4 engine can’t handle it, especially when:
• The AI is given broken focuses
• Nukes or scripted civil wars start
• You load a save after a major change in world state