Art Assets Disappearing from in-game maps

Hello! I've run into a strange problem, on one of my maps a whole bunch of art assets have disappeared. I had made a pattern from chains in the Map&Background layer as part of the visual aesthetics of a campaign of mine and now like 80% of them are just gone. Some of the 'chains' are still there in the now malformed pattern but the vast majority of them have simply disappeared. I checked that none of the shard servers were down and that Roll20 seems to be running and connecting properly and everything seems to be operating normally.  This isn't a big problem yet, I can easily spend 5 minutes and remake the pattern, but it is a bit worrysome and that's why I thought I should share this. So far it's only affected this pattern but what if this happens on a larger scale in the future possibly ruining works that took far more time to create? A scary thought! Appreciate any feedback if anybody knows what might be causing this!

Nicholas said: Hey Li Li S. - I just wanted to check in here; we're you still experiencing any problems with the assets disappearing from your maps? Or do things seem to be resolved now? Hello! So far this has only happened once and I've experienced no further problems. It was just disconcerning the way it happened since I the "pattern" that got affected by the sudden vanishing of some of the in-game assets was made over a week before it actually happened, during which I had logged in and out several times inbetween which should rule out a desynched login, or at least so I believe.  I'll pass on the word should it happen again of course, but so far this has been a one-time occurance.