This was done on the PC client

I was doing my Hydra fights around the time of the maintenance downtime and trying out some teams using the free regroup feature. At the time maintenance was supposed to happen I was able to keep playing and tried out 2 different teams. One of the teams I used my free regroup on and it did not use a key. The second team I played through and tried to keep the result but at the end was told I needed to re login and when I logged in the result did not count. After I logged in I was able to use that same team and complete the run with no problem.

The champions that are in the first team I was trying when maintenance should have happened are all showing that they have been used in a Hydra battle this week even though I have only completed 2 of my runs and still have 1 key remaining.

Here are some pictures showing first my 2 teams that I have successfully used in Hydra fights this week

Team 1, Brutal: bE1R1Nr.png (1603×932) (imgur.com) 

Team 2, Hard: HJx3rwR.png (1603×932) (imgur.com) 

Now here is my team select area where is is showing champions that I have not used in either of those teams being unavailable because "This Champion has already fought the Hydra this week."

3VyA4Ij.png (1603×932) (imgur.com) 

wwd0lbr.png (1603×932) (imgur.com) 

Jq39UWO.png (1603×932) (imgur.com) 

Iy6tpzz.png (1603×932) (imgur.com) 

jrEpuxI.png (1603×932) (imgur.com) 

Lydia, Wythir, Drexthar, Ninja, Kimi, Brogni, Pinthroy, Ursala, Geomancer 1, Geomancer 2, Husk, Dhukk, Uugo, Royal Guard, Melga, Vogoth, Nekmo and Siphi are all showing they have fought the Hydra this week but I have only used 2 keys and you can see in the pictures above I still have 1 key remaining so 6 of those 18 champions have not actually completed a Hydra fight.

This is stopping me from using my last key and I will miss out on claiming extra chests and rewards from Hydra now.