Sub simulcast stream with rid only , the resolution is incorrect

[cisco66666]

1,Environment and platform： 43mcu，ubuntu，software，chrome77 2,Reproduce step 1，pub 720p simulcast stream with VP9 options = { audio : true, video : [ {rid: 'q', active: true, scaleResolutionDownBy: 2.0}, {rid: 'h', active: true, scaleResolutionDownBy: 1.0}, ]} 2,sub rid Only w has one stream 320x180 3,sub.getstats >> resolution=640x480 3,Result analysis Rid and resolution did not meet expectations

[lzhai]

VP9 simulcast behavior is unstable under current Chrome version.