Suspend does not work when using Shortwave

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1

Even after shutting down Shotwave suspend does not work.

Using ps uxa

daveo     748227  0.0  0.0   3748  2268 ?        Ss   07:35   0:00 /usr/bin/bwrap --args 41 -- /app/bin/shortwave --gapplication-service
daveo     748236  0.0  0.0   3844  1640 ?        S    07:35   0:00 /usr/bin/bwrap --args 41 -- /app/bin/shortwave --gapplication-service
daveo     748237  4.0  0.5 3804880 176900 ?      Sl   07:35   0:02 /app/bin/shortwave --gapplication-service

Using netstat -tulpn

udp        0      0 0.0.0.0:5353            0.0.0.0:*                           748237/shortwave    
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           748237/shortwave    
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           748237/shortwave    
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           748237/shortwave    
udp        0      0 127.0.0.1:44708         0.0.0.0:*                           748237/shortwave    
udp6       0      0 :::5353                 :::*                                748237/shortwave    
udp6       0      0 :::5353                 :::*                                748237/shortwave    
udp6       0      0 :::5353                 :::*                                748237/shortwave    
udp6       0      0 :::5353                 :::*                                748237/shortwave    
udp6       0      0 :::5353                 :::*                                748237/shortwave

After shutting Shortwave down none of the above show yet suspend does not work.

2

I use cinnamon and Shotwave remains active because of the Launch Player widget. So the question is; how to I terminate a widget(player) on the task bar? Note; the player status is Stopped.