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JRiver on Raspberry Pi has a memory leak?

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DrKNo:
I have had this issue for a long while now, but wanted to do further research before I posted. I tested on a RasPI 3b+ with Stretch and Buster, each with MC 24, 25 and 26. My media network consists of a central library server (Intel NUC, media lies on a NAS) and two RasPIs in Kitchen and Bedroom connected to a USB-C speaker, and using WiFi for data. The RasPIs run JRiver MediaCenter via tremote (i.e. they load the library of the server) and they show up as zones there.

After restart everything runs fine, and stays that way as long as I don't play anything. As soon as I start playing, RAM usage of MC slowly increases on the pi, until it can't keep up, starts stuttering, and finally dies. MC starts out with some 240MB of RAM and uses > 800MB towards the end.

I can usually play between 30 minutes and 1 hour of music before that happens. Currently, this prohibits me from using remote zone... any idea what causes this and how to fix it?

JimH:
Turn off audio analysis and import.

DrKNo:
Sorry for being dense: Turn off analysis and automatic file import on the RasPI? isn't that managed by the server? I'll try it once I'm home and report back. Thanks for the quick reply, Jim.

DrKNo:
No success, unfortunately. I made a screenshot of the settings and attached them. RAM still runs full.
RAM usage clearly increases at the start of a new song, then continues for a while (while it is being streamed?) and then stops for a while before it continues to rise with the next song.
There are no songs in the local library, only in the remote one on the server.

JimH:
What are you playing?

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