DumpShaderStats command not working. UE4.27, UE5, UE4.26

Hi all, trying to use the DumpShaderStats command.

Output seems to allways show

Type Instances Average instructions Size AvgSizePerInstance Pipelines Shared Pipelines
Total 0 0 0 0 0 -0
Average 0 0 0 0 -0 -0

When I did a little debugging seems like
Type->GetNumShaders() always returns 0 ?
Could be that its itterating over the wrong list of shadertypes however.

Many thanks to anyone who knows how to get this command to work in newer version of ue4/5