update????

sometimes you don't get notified about updates (especially when the manga is updated more than once per day and the second update takes place after you get the collective update notification) usually this will show up in the update of the following day then

and I just checked and for me it says that chapter 11 and 12 were uploaded yesterday and 13 today so I don't know if I understood your question correctly but if you mean that you checked today and it didn't show ch 13 yet then maybe it was uploaded later on and u just went back and then saw ch 13 upload
or you got notified yesterday that 11 and 12 got uploaded but today was no notification even tho 13 was uploaded (that happens frequently, especially when you have many mangas you are reading and many are being updated at the same time so the system misses to tell you about some.. that's how sometimes it happens that you go to check up on a manga that you remember reading but that seems to not have been updated in a while but then you check manually and it says that there are massive chapter uploads that you haven't been notified of.. yeah it sucks but it happens quite often)

hope I could help if not maybe clarify again what exactly happened :)

haha tysm for explaining. For some reason I got the notification this updated but never saw that chapter 13 was there. Chapter 12 was the latest chapter that I saw. It fixed itself today so its whatever