Ground units freezes instantly after reaching max amount of PathFindCells

[DrGoldFish1]

Prerequisites

• I have searched for similar issues and confirmed this is not a duplicate

Game Version

• Command & Conquer Generals
• Command & Conquer Generals: Zero Hour
• Other (please specify below)

Bug Description

Ground units freezes after max amount of pathfindcells is reached.

Games tend to freeze up faster if there are loads of buildings in the map like markets and stuff. But the bigger the area of a building is the more pathfindcells is claims and the faster the units will freeze up.

Before reaching the pathfindcell limit

2025-12-12.21-15-29.mp4

After the pathfindcell limit

2025-12-12.21-15-41.mp4

Related to #1985

Reproduction Steps

1. Start a new game best to do this on a big map.
2. Place loads of structure scaffold best is to use the USA airfield. Around a 100-150 of these should do the job
3. watch your units freeze up
4. cancel a scaffold again at the moment it freezes so you can see some units being able to move again.

Additional Context

No response

[Caball009]

With @Mauller 's branch https://github.com/Mauller/CnC_Generals_Zero_Hour/tree/tweak-pathfinding-no-mem-allocation this is appears to be fixed, but the pathfinding may be rather costly.

Original behavior:

pathfinding_before.mp4

Behavior with Mauller's branch:

pathfinding_after.mp4