[Client]New Champion Collection page displaying wrong informations (patch 9.17)

First of out, I do like the new look of the champion collection page for sure, but there are quite a few bugs on it.

First of all, the masteries are displaying wrong. Only the first 4 rows of champions get the correct mastery levels. Every row afterward would just loop the first 4 rows.

Second, when you choose the "most popular position", for each position it will include a "none" champion. I guess it works ok when you choose "recently played" or "champion mastery", as the "none" champion would always appear at the last. But if "alphabetical" or "chest available" were chosen, it will just appear in the middle of all, as a champion that actually has a name called "None".

Third, the "chest acquired" and "free to play" logo for the first role of champions has part of the logo cut off, when "all champions" were selected.

Last, not a bug, but a wish. I wish the "most popular position" could work similarly to the champion selection page, where you would have the option to only show 1 position at a time so that you don't have to roll all the way down to find support. Also, it would be great that you can also add custom position to champions. For instance, apparently, Karma is shown as support only, whereas Yasuo is both mid and top.

Thank you. Also, while I'm writing this, I noticed the maintenance notification in the client, and it does mention "champion mastery issues". Hopefully the ones I listed are getting fixed.