Source build issue

Hey everyone,

Last night I decided to step forward and test out the new 4.7 binaries.

During loading of the editor, ShaderCompilerWorker starts running and popping up windows like this:

The window titles range from 0 - 4.

I have tried rebuilding the engine from source multiple times.

Is this normal? Should I let it run longer then the 20 mins I allowed it before ending the task?

Regards,