Half-Life: Alyx how to fix black dynamic props (propdynamic)

How to fix black prop_dynamic in source 2

 
Lightning was always an issue in source 2 
 
static props (prop_static) lightning information stored in ‘lightmaps’, but prop_dynamic light info stored in entitys ‘env_light_probe_volumes’ or ‘env_combined_light_probe_volume’ , so if you notice that your dynamic objects such as doors, doorknobs, handles, windows are black — probably you forgot to add these entyties on your level. 
 
More info about these entities and how to fix this problem you can found here: 
https://developer.valvesoftware.com/wiki/Half-Life:_Alyx_Workshop_Tools/Level_Design/Lighting#Indirect_lighting 
 
I have spent enourmouse amount of time searching in internet about fixing black doors, etc, so I want to share my knoledge, may be you may found it relevant to your problem 
 

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