If it hasn't helped you can reactivate the services, thanks for trying it. Can you try increasing the RAM allocation for the game? Go to the install directory and edit the "ProjectZomboid64.json" file, find the line "-Xmx3072m" and change it to "-Xmx6g".

Thanks a lot for digging into this and testing both single-player and multiplayer that really helps narrow it down. Since it works fine in MP, it definitely sounds like something specific to SP handling. Maybe a dev could confirm if there are differences in how interaction prompts are initialized in split-screen SP?

Locking system don't work also on some vanilla doors.

Thanks for the report. This is a known bug at the moment

**[BUG REPORT] Systematic crash to desktop - ntdll.dll heap corruption - AMD RX 6700 - Build 42 Unstable** --- **System specs:** - Motherboard: ASUS ROG STRIX B550-F Gaming - CPU: AMD Ryzen 5 5600X - GPU: AMD Radeon RX 6700 - RAM: 32 GB DDR4 3200MHz (4x8GB Corsair CMK16GX4M2B3200C16) - OS: Windows 11 - GPU drivers: latest as of June 2026 - Chipset drivers: latest - BIOS: latest, DOCP enabled at DDR4-3200MHz --- **Description:** Since updating to Build 42 (latest unstable branch), I am experiencing systematic and frequent crashes to desktop with no warning or error message in-game. The game simply closes and returns to Windows instantly. This never happened on Build 41. The crashes occur randomly — sometimes within seconds of loading into a world, sometimes after a few minutes or more. They are not tied to any specific in-game action. --- **What I have already tried:** - Verified game files via Steam - Full clean reinstall of the game - Tested with zero mods active - Updated GPU drivers, chipset drivers, and BIOS - Disabled AMD Shader Cache and cleared existing cache - Forced OpenGL mode via launch options (`-opengl`) - Tested with Resizable BAR on Auto - The issue does NOT occur in any other game (tested with Tekken 8, Oblivion Remastered, and others) — this is specific to Project Zomboid B42 --- **Windows Event Viewer error (consistent across every crash):** ``` Faulting application name: ProjectZomboid64.exe, version: 0.0.0.0 Faulting module name: ntdll.dll, version: 10.0.26100.8328 Exception code: 0xc0000374 Fault offset: 0x0000000000117175 Faulting process ID: variable Faulting application path: D:\Program Files (x86)\Steam\steamapps\common\ProjectZomboid\ProjectZomboid64.exe Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll ``` **Exception code 0xc0000374 = heap corruption.** Notably, the fault offset (0x0000000000117175) is identical across every single crash, suggesting this is a fully reproducible code path triggering the corruption. No `hs_err_pid` file is generated in the Zomboid folder. --- **Last lines of the game log before crash:** ``` [07-06-26 21:51:17.742] WARN : General  at SpriteConfig.initObjectInfo > Invalid SpriteConfig object! scripted object = Wooden_Windows. ``` (Log ends here with no further error output) --- **Additional notes:** This appears to be specific to the B42 rendering pipeline changes combined with AMD RX 6000 series hardware. Build 41 ran perfectly on this exact same setup with no crashes whatsoever. Please let me know if you need any additional logs or information. Happy to run any diagnostic you suggest. 2026-06-08_12-52_DebugLog.txt