graywolf map9v3, blank window show up and hang

[oldragon]

I installed graywolf in MacBook Air M1 without any errors after follow the instruction here and from Youtube. But when I try "graywolf map9v3" in the tests/map9v3 directory, I have the graywolf window pop up but it is blank and hang with the following message

twflow version:2.1 date:
Authors: Bill Swartz, Carl Sechen
Yale University
Twflow switches:
debug on
Graphics mode on
TimberWolf mode on

Please help me!
Thanks