Can someone give some context why new chapter are being released after so many years? Not ...

so some of the chapters were uploaded under Maiden Rose - Rose of a Hundred Days, which i thought was a continuation of the main story, like a different season, a dj, or a spin-off since the author makes those too, but i guess not (turns out it’s literally just the main story + extra). But, the last four or five chapters haven’t been uploaded on mangago before. I checked the authors twitter over the past few years and they’ve been updating the manga the entire time, just nobody’s been updating it here.