Nexus no longer on the list of "My Devices" on Play on the Web

What could cause my Nexus to no longer be listed on the "My Devices" section of Google Play on the web? I can access Play on my phone, but on the web, it only shows my Nexus 7. I am on a custom ROM, but I have been for months without a problem. What could be the issue?

I had that problem a few months after I rooted my OG Kindle Fire.
Not sure if it helps but for me it fixed itself when I updated GApps & it's been fine since then.

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This is happening to me too. I tried that Clear Data/Force Stop the Google Services Framework to force the 4.22 OTA update, which didn't work, but I don't know if that has anything to do with it.

Maybe a cache/dalvik wipe could help? OP: Did this happen after this update or has it been doing it for a while now?

It was almost certainly the Google frameworks clearing. I had this happen to me earlier today. Took me forever to get it back. Basically I cleared Google play and the other play services. Then I opened music and started playing stuff that got it back in Google play music authorizations and then waited an hour and it ended up back on my devices. There was also many syncing in there and what not.

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Oh and I went into play store app after playing the music to accept agreement again and installed an app...then was the hour wait.

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