Atlas part deleted and maps gone

Hi,
I just comeback to the game after play Delve and i go to my Delve caracters on Santard league to move everythings on the stash.
Then i realise after doing one maps that all maps after t11 aren't completed and all my t12+ maps on my StashTab are gone.
I had completed all Atlas (only 9 unique maps left) on Standar league and Delve league before this and now i lost all my unique maps and t12+ maps on stash and completed maks on atlas after t12.

Thanks for your help.

MrFantross

Map stash seems bugged (lots of reports about unique maps etc). We are waiting for bug fixes.

You can unlock lower maps by completing high tier maps (t15/16) except unique maps I guess eventually.

Thanks for your awnser,

You are right i did a t15 twice and it unlocked all t10 and lower first then some t14 and lowert, but my t16 t15 (also the one i did) and all unique still disable in Atlas.
And Okay for the MapStash bug, i'll wait it will be fixed,

Thanks you.

about bugs fixing:

We are also finishing work on fixes for the existing Map Stash Tab issues. We are currently testing them and are keen to release them as soon as possible. Thank you for your patience.

source: https://www.pathofexile.com/forum/view-thread/2265554