TuneIn Extension - Some TuneIn streams not compatible

I am using the latest version of Mopidy (2.1.0) on Linux raspberrypi 4.9.59-v7+ #1047 SMP Sun Oct 29 12:19:23 GMT 2017 armv7l GNU/Linux.

I have created three TuneIn radio station m3u playlist files. All three stations play through my browser. The “playlist” loads successfully (mpc load my_playlist). Only one of these stations will play. For the other two, I receive an audio announcement “This stream is not compatible with this player. Please contact the radio station to receive a compatible stream…” or something to this effect. Then silence. No errors from Mpc nor any errors lin mopidy.log.

Compatible: tunein:station:s30611
Not compatible: tunein:station:s22921, tunein:station:s22536

Any way to address this incompatibility? Any way to know which TuneIn stations are compatible?