Non-ascii characters in "ng build" output

When I run ng build I get some non-ASCII characters in the console output:

15:02:51 info: Microsoft.AspNetCore.SpaServices[0]
15:02:51 i ï½¢wdsï½£: webpack output is served from /


I searched for the string i ï½¢wdsï½£ and found it in some other places, e.g. https://www.genuitec.com/forums/topic/project-test-a-is-not-an-angular-cli-project/.

Is it something I should be concerned about? The project runs fine otherwise.

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