UE5.6.1, PCG, CustomHLSL, Error: Shader minification failed

Good afternoon, can you tell me, please, what could be the problem?

The new project includes the PCG Framework plugin. A new level and PCGGraph have been created. PCGVolume has been added to this level and PCGGraph has been added to it.

HLSL(PointGenerator) node added to PCGGraph without input contacts, with one “Point” type output contact.
An error appears:
Warning: Shader minimization failed.
Error: [125,6] expected unqualified-id
Error: /Engine/Transient/PCG_test/CustomHLSL_PCGCustomHLSLKernel: Shader compilation failed.

In the logs:
LogComputeFramework: Loading shader for kernel /Engine/Transient/PCG_test/Custom_HLSL_PCGCustomHLSLKernel from DDC failed. Shader needs recompile.
LogComputeFramework: Missing cached shader map for kernel /Engine/Transient/PCG_test/Custom_HLSL_PCGCustomHLSLKernel, compiling.
LogComputeKernelShaderCompiler: Warning: (-1,-1): Shader minification failed.
LogComputeKernelShaderCompiler: Error: ../../../Engine/Plugins/Runtime/ComputeFramework/Shaders/Generated/ComputeKernel.ush(125,6): expected unqualified-id
LogComputeFramework: /Engine/Transient/PCG_test/Custom_HLSL_PCGCustomHLSLKernel: Shader compilation failed.

There is simply no ComputeKernel.ush file.

Installing the 5.7 engine did not solve the problem.
Recompilation of shaders too.