Considering some of the planets going away this fall I decided to fill my collection with these emblems. Good thing I started with Titan, it took me around 1 and a half hours (may be around 100 chests, may be even less) to unlock 3 of missing emblems, lucky or not, who knows. Then I moved to Io, and oh boy, I think at this point I opened around 200 chests or even more and not a single emblem dropped for me. Bearing in mind that this season Io was under some development (new public event, vaulting stuff etc.) I think that these chests are not longer counting as Io chests. Please if somebody got any of Io emblems this season let me know. If not, bungie, please fix=)