netgen - meshing problem

Hello,

I had a problem doing surface meshing for the attached step file with fine or very fine mesh size.
Surface meshing is working ok with moderate, coarse, very coarse setting.

ps . tetmeshing fails with all settings but this is not my concern.

I’m using the latest version of netgen gui from here Index of /~mhochsteger/ngsolve/windows

NETGEN-6.2.2105-138-gd7be2c85

Your help is much appreciated.

Thanks

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