for what its worth & its not a surefire way to keep things, all of my comments on the mangas Ive read still stayed so maybe mass comment on all of the things you've been reading!
sucks to be me lol i didn't realize this was a mass website glitch (haven't been here since October) so i just went and tried to get back all my favs. oh well if i cant remember it it wasn't worth it anyway
do not mass comment on things you've been reading. the comments have vanished before. are you even reading what's being said? if the comments poof again, like it says in the whole thing i typed out, there goes your comments and you have NO IDEA what was said. use your browser bookmark because your browser bookmark is not the website. the thing you open up to type the website into. is called a browser. some people call it apparently a web group. i really don't care what you call it. But don't use the site
read https://www.mangago.me/home/mangatopic/21144656/ and now it will take longer for your lists to come back. just a heads up. use your browser not the site to bookmark things
as they go through the passes it might flip back into the spot you had it before. aka wanting to read spot. you think they are going to send out over a million emails??? oh heck no, that'd cause it's own crash/glitch. keep an eye on the comment section where you put up your question and got my reply the first time. you'll see others posting like @suujin

Alright folks. It has been a week now since the glitch issue started. At least 80% of you know what's going on. the 20% of you that don't. Well, everyone just keep reading below.
Yes, the want to read, reading and read lists are still being worked on. They are at least halfway through the second pass if not further along. Give it time. Until then. PLEASE FOR THE LOVE OF ALL THAT IS OUT THERE!!! use your browser bookmarks to bookmark things. NOT THE SITE!! don't go into the manga and mark it "reading" "Read" "chapter whatever" because if there's another glitch. POOF! it all could be gone. Use your browser.
Your browser is the thing you open up to type in the webpage to use the site on. The book marker is the top right hand corner under the X button.
When will this be fixed? We don't fully know. It could be the middle of February, could be the end, could be tomorrow. We have to wait and see. Truth be told folks, it's a small team doing this work not a large corporation. There are over a million accounts on this site and more coming by the day. It's going to take time! If you want to complain about it. Do it in your head. Because the Devs and mods trying to get the site fixed as quickly as they can for you all. Don't need to hear it. And the rest of us who have been trying to help you all understand what's going on. Also do not need to hear it.
DO NOT mess with your lists!! Why? you ask. 3 reasons. 1. adding to your list just adds work to the Devs and causes a delay in the list coming back to you. 2. If your list has returned and you start messing with it (like the comments) and there's another glitch. you are stuck doing it all over again. That will be on you. Not the Devs, not the mods. No one but you. 3. None of us want to hear you whine and BEEP that your list is messed up again. That your frustrated you took hours to clean it and it's all back in the spot it was before.
There are people that will drop updates. If you watch for them in the main comment section (Where you're reading this most likely) you will find them. (or their links) dropped by others. READ THEM. you can keep up to date on things.
Do we know if the lists will be sorted by the Devs back into place like they were or will you have to do it? We have no idea right now. We are taking this one step at a time. Most of us are just happy to see things back on the lists! There are still several more passes to go. Hopefully the final pass will put everything in their proper place. After the final pass a comment will be dropped to tell those who still have manga's missing from their lists where to go.
Now, for those of you that are sitting there twiddling your thumbs. I have given several suggestions on things to do. Some of you have done them. Others have not. Yes, I know who you all are, because I see you in the comment sections complaining.
Top bar of this site has 4. Yes count them 4 colored buttons. Click one of them! Lo and be hold folks. Things to read. New or old it's something to read. A reminder as you find mangas to read use the browser bookmarker.
Reread. And I stand firm on this one, you cannot tell me you do not have time to reread something. You are on this site in the first place. as you come to a stop in the middle of a read, use your browser bookmarker to bookmark where you left off at. easier to come back to.
Pick a subject that's NOT the glitch, to talk about in the comment section to make new friends. you are one step already closer because everyone here likes manga.
If for some reason you decide not to follow anything on this list. It's on you. Do not go into the comment section to whine and complain to everyone about it because you didn't listen to all the links dropped for your sake.
With that, go read. and remember to BREATH!! it will be fixed!!