Unreal Crowd Navigation Setup for multiple enemies crowd behaviour

I’m building a level in Unreal Engine where groups of enemies must move convincingly through dense spaces, reacting to changing obstacles and one another with clean, reliable pathfinding. My current blueprints handle individual AI just fine, but once several enemies spawn at once, they begin colliding, hesitating at choke points, and generally breaking immersion.

Here’s what I need from you:

• Analyse my existing project (UE 5.4) and pinpoint why the crowd agents are tripping over each other.
• Configure or refactor the Navigation System—NavMesh, AIController, EQS (if useful), Crowd Manager settings, or your own C++ solution—so that dozens of agents can navigate hallways, stairs, and open arenas smoothly.
• Demonstrate avoidance, lane-keeping around corners, and re-pathing when a door suddenly closes. I’m happy to supply a small test map for this purpose.

I’ll provide the current project files, enemy BP/C++ classes, and a short video showing the problem spots. Please return a working build or plugin plus clear notes so I can tweak parameters later on. If you see opportunities for optimisation or smarter formation logic, feel free to suggest them—I’m open to improvements as long as navigation remains the primary focus.