Official campaign AI script: workers no longer repair in custom maps

[ReforgedBike]

Hello, if anyone can solve this I would be grateful:

When an official classic campaign map loads an official campaign AI script: No bugs.
When a custom map loads an official campaign AI script: Workers don't repair structures.

All AI computers (purple, orange and yellow) no longer repair structures on custom maps which are based on "Gates of the Abyss", such as "2P Reforged: BElf 05". Link: https://www.hiveworkshop.com/threads/2-player-campaign-2020-hd-sd.322390/
This bug for custom maps did not exist before, some recent patch must have broken the way official campaign AI scripts are loaded/read in custom maps.
The action is: "AI - Start melee AI script for P05_YellowChaosOrc: h05x05.ai". Initialization: "Game - Preload all files listed in Scripts\HumanX05.pld.".
Structures far from fortress don't get repaired while structures near the path of workers do get randomly repaired, it's as if workers can no longer decide to repair if they are busy.
When a structure is damaged one of the fel peons mining gold is supposed to go repair, while one of the fel peons cutting lumber is supposed to go to the gold mine. The official singleplayer map Gates of the Abyss (classic campaign) doesn't have this bug.

 

[ReforgedBike]

Is the action "Game - Preload all files listed in Scripts\HumanX05.pld." even necessary during Initialization? We have better computers today than 20 years ago, no need for preloading stuff? Preloading only done to reduce lag/freezes while playing? Does anyone know where to find the HumanX05.pld in the WC3 game folder so I can open it and check its content? I can't seem to find it. Thank you.