Artificial Academy 2 Unhandled Exception New May 2026

Run the AA2Reg.exe registry fix tool (often included in mod packs) to re-register game paths.

A corrupted save file can trigger the "Unhandled Exception New" when the game tries to load a specific character’s new action or relationship status.

Navigate to your AA2 installation folder. Find the save folder and delete it entirely (back up your favorite characters first). Launch the game. The game will regenerate clean save files. If this fixes the issue, your character roster or school data was corrupted.

Once you have a stable build, protect it:

This is the single most effective fix for the new unhandled exception, especially if you have many mods.

The Problem: AA2 cannot use more than 2GB of RAM. When you click "New," it loads all character assets into memory, hitting the 2GB wall instantly. artificial academy 2 unhandled exception new

The Solution: Modify the AA2Play.exe to be "Large Address Aware" (LAA), allowing it to use up to 4GB of RAM.

How to do it:

When all else fails, the community is your best asset:

When asking for help, always provide:

If you encounter a new "Unhandled Exception" error, follow this order:

Many "unhandled exception" errors when loading new assets occur because the game tries to read a file path like data/char/新規フォルダ but your system sees garbled text (data/char/???), causing a null reference.

The Solution: Change your non-Unicode program language to Japanese.

Steps (Windows 10/11):

This is the most likely cause. AA2 was not built for English file paths or system locales. If your Windows username has a space (e.g., John Smith) or a special character, or if you installed the game in C:\Program Files (x86), the game will throw an unhandled exception when trying to save.

The Fix:

Alternative: If you don't want to change your whole PC locale, download Locale Emulator. Right-click AA2Play.exe and select "Run in Japanese (Admin)."