@Christopher
Probably not. Looks like chapter 18 was split into 2 parts. Then the .5 extra which isn't part of a numbered chapter but is called 18.5 to keep the order right.
@cupine, sorry for the late reply I just saw your question. The original version is released in parts and we scanlate the parts as fast as we can and release them as soon as they are ready so you guys don't have to wait too long, though I get that releases this short can be frustrating.
@Nellsai There's no 19.4. The raws go from 19.4 to 20.1
@Christopher The raws aren't consistent in the numbering. Like chapter 16 goes to 16.5 but chapter 17 and 18 goes to 17.2 and 18.2, but then 19 goes to 19.4
@magykpanda@dtim
Yah, I believe every chapter up to this point had been split into 4 mini chapters and any 5th mini was just the bonus volume pages. That's why I thought there was missing and I am guessing these chapters are shorter so they couldn't split into more.