User blog comment:MisterWoodhouse/Blogs are now available on the Unified Community Platform/@comment-2.121.208.53-20201121183707/@comment-26339491-20201123182617

That is impossible to anwer without more information, for example on which wiki this is happenin, what exactly is happening (do they disappear as you hit save, after they're already published, or perhaps while you're still writing, etc.). If it keeps happning, you can send all details about the problem via Special:Contact, where we should be able to figure it out.