Problem: why does a library update kill the queue?

I log in to the control panel for my MyCloud device by just going to the IP address of the device in my browser. OS 5 (I think that’s what it is running) comes up with a page that allows me to look at and change such thing as (on the network page) SMB and NTML versions. 
 

Sadly enough that's just not possible with a WD My Cloud Home NAS.

What OS is it running? I’d have thought it would operate similarly as it does on the WD MyCloud Mirror that I have, despite the slight hardware differences. It seems odd for WD to sell a device that you can’t log on / in to to change settings. 

And I’ll admit I don’t log in to mine frequently, I had to peruse the WD site (via Google search) to ferret out how to log in to mine the other day. Turns out, the last time I had bookmarked it was before I had assigned it a reserved IP address, which made the link I’d saved not work properly. Had to look up the actual IP address in my router’s DHCP table, which is when I finally realized why the browser link wasn’t connecting. 

There's no way to determine that. The only info it shares is: WD Discovery v.4.3.336 and My Cloud Desktop v.2.1.0.322. The My Cloud Home NAS’es are quite different in many aspects from a 'normal’ My Cloud NAS.

Odd as it may seem, that's how it is.

Would you be so kind as to post a link to the manual for this device? Would love to read up on it, and unfortunately, WD has a bunch of different ones, I want to be sure I’m reading the correct manual.

Here it is: https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/wd/product/external-storage/my_cloud/my_cloud_home/user-manual-my-cloud-home.pdf

Fascinating. I’d have assumed it would be in the settings that are explained starting on page 18 of that doc, but there certainly is no confirmation that it exists in that menu. Most odd, and thank you for posting that link. 

I hope someone from Sonos has greater familiarity with that particular device, and is able to assist here. I’d also be tempted to reach out to Western Digital for more context, but that’s me. 

Been talking on the phone to customer service in NL for almost 2 hours. The guy on the other end of the line was very friendly and helpful. He had me change the ethernet wiring of my system, rebooting the NAS, rebooting the router, re-indexing the music library (manually and automatically), all to no avail. He succeeded in reproducing the issue by remote control twice. That convinced him there was a real issue going on that he couldn't solve. In the end he escalated the problem to someone higher up in the technical chain. To be continued. I'll keep you informed.

Thanks @beynym - it’s a real unusual issue.. I don’t think I’ve ever come across it in these pages before. I’m surprised some others have not (yet) reported the matter, but it’s good to hear that it was reproduced by the Support Staff accessing your setup remotely and have now escalated the matter for investigation. 
 

Also, thanks kindly for the feedback here and hope the matter gets fixed for you soon. 👍

If you power down PORT do you have the issue with another player?