This happened on the fourth , but Im writing now because I deleted my previous draft and didn't want to retype it.
At some point during 4:00 - 10:00 AM CET on the 3rd of January 4 specific blocks in my base were removed without my knowledge. The removal of these blocks was later discovered by me after logging in for the first time after sleeping (10 AM). The first block that I discovered was a Hellfire Forge from the Blood Alchemy mod, although I shrugged this off as an enderman attack. Not so long after I found my Enhanced Alloy Smelter to be missing, shruffing this off again as there is a dupe bug related to this item and the admins might have done something. As I felt a little confused I go full detective and look around my base for other missing blocks and find that my Enchanter from Ender IO is also missing. All these dissapearings led me ask in the chat if something similar has happened to the other players, and if you read the 2 latest issues it's clear that something similar has happened to them. Without no real explaination I continue on playing like normal, but today, not long ago I find that my Slice'n'Splice machine from Ender IO is ALSO missing. The only real pattern I could find on my personal dissapearings is that they all happened on very similar X and Z coordinates, although drastically different Y coordinates. I don't want my base rolled back as I'd lose more progress than I would regain, but I would like to know why this has happened to possibly prevent it in the future.
