In the years following its launch, search terms combining game titles with scene groups (such as "3DM") and cracked fixes frequently populated internet forums. Historically, 3DM was a prominent Chinese peer-to-peer file-sharing and cracking group known for bypassing digital rights management (DRM) systems in the early to mid-2010s.
The removal of custom match types (like Ladder matches in random arenas).
Ensure you are using the latest version of the 3DM release (usually labeled "Update 5" or higher).