Seems to be fixed for me as of this evening

A current work around to this issue:

1) Adujst Options -> Account -> Unlock Full Play
2) Queue for a normal game and cancel the queue before a match is found
3) Open the color challenge that you want to complete
4) Click play on the challenge and it will let you queue for the colors

*NOTE* -> You must queue for a normal after each color or you will get the same error.

same issue on iPhone.

Same problem on android and macbook pro os ...

I can't finish color challenge, can't play last game of all challenges. Game said "waiting for the server" but never finish . And can't play PvP

Same issue on iphone

Same problem here! Makes it almost unplayable. Only could finish green color challenge (after unlocking all play modes in the settings). Other color challenges still stuck!

I'm having the same problem. Played back around when Arena first came out, quit for a year or so, and just got back into it again yesterday. I managed to do all of Blue no problem, but then once I went to my second color to do, I could do the first 4 battles only and the PVP-finding one had this issue. I since checked each individual color since Blue worked, and none of the others did. As it sits, I'm 4/5 for everything but Blue due to this error.

Windows 10 OS, running 21H1 update. No problems finding PVP games outside the Color Challenge, only met with the "Waiting for the Server..." message in the Challenge.

issues with the colors challenges, unable to complete the fifth game on every color, screen stucks on "waiting fot the server" forever

I have this same bug.

There's a bunch of people on Reddit as well, who should be added as "Votes" to this:

https://www.reddit.com/r/MagicArena/comments/nn0ldc/color_challenge_v_stuck_on_waiting_for_server/

Seriously you need to fix this bug immediately, it's absolutely game-breaking for new players.

Edit: Reposted comment to attach log file.

I have this same problem, it’s persisted through multiple reboots and reinstalls.

i have the same problem

I'm having the same issue.

I have this same bug. Playing on Windows 10 PC.

There's a bunch of people on Reddit as well, who should be added as "Votes" to this:

https://www.reddit.com/r/MagicArena/comments/nn0ldc/color_challenge_v_stuck_on_waiting_for_server/

Seriously you need to fix this bug immediately, it's absolutely game-breaking for new players.

Same issue on android

A lot of comments for nothing to be fixed

I have the same problem on Android

New update. Still no fix

Me too! New player, can't even complete the first color challenge stage 5.

I am seeing the same issue