Color challenge for red is stuck saying network error. Deck needs to be reset I think

I continue to get the network error when trying to play the last color challenge in the red decks. I have tried editing the deck to no avail. Could you please reset my decks so I can play the final color challenge? this is incredibly upsetting its been happening for months.

I am having the same problem. Last challenge of the white, (network error try again later). Playing on windows, been a couple of months now.

When attempting to complete Color Challenge, not able to do the last Green one. Informed "Network Error - Unable to join event. Please try again later."

I have the same problem (Mac or Android)

I'm working on the color challenge and I've won all the AI matches. When I try to accept the last game of each color I get a network error message and I am unable to complete the challenge

Please fix this. As far as I can tell, I can't play versus actual players or draft until I complete this, which I cannot do. I'm likely to drop this game entirely over this (since it basically makes the whole of MTG arena unplayable)

There is a possible solution found by r/WARKIDKAOTYK. I'll copy it here. This solution did not work for me, but it might work for you. Good luck.
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I encountered this myself. I have completed the initial five colors to unlock the five decks. It didn’t happen until I edited the decks that are available to use in color challenge from the decks tab. I had only edited two decks at that point and thought I was completely locked out. I was trying to use the black deck which I had edited pretty heavily but the blue deck was still useable as I only dropped two lands and added duplicates of two cards that were already present in the deck.

Spammed the play button a whole bunch of times then tried with the blue deck and it let me in. Didn’t think anything of it except the network error was resolved. Today I edited the white deck pretty heavily and it gave me the same network error then I tried the blue deck again. Got in. Tried the heavily edited black deck. Network error. Tried the unedited red deck. Got in. White deck. Network error. Black deck. Network error. Blue deck. Got in.

I think it has something to do with the card list for the deck you are trying to play with and will only accept decks with certain cards in it. It might only accept cards from certain sets. Idk yet as I am still trial and error on this myself.

I never had an issue until I messed with the deck builds tho. My suggestion would be to copy the deck you want to edit and edit the copy to use in standard play and save the original to use in color challenge.

I’m going to look up the original decks to try to restore to original and see how that goes and tell them from there to see what it will allow.
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Edit: I fixed the problem. Put in a support ticket and ask them to re-add your color challenge decks. They responded in about an hour, and I was able to complete the challenge.

Where do i find the solution to this problem?

Having the same issue

Is there any way to get around this Error? It's infuriating to miss out on the beginner decks, especially if you are a new player.

I suppose we just have to wait for ages?

I'm having the same problem, its infuriating!

I'm unable to complete the color challenge due to the "network" issue and this is the case on both my phone and laptop. This is happening with all the color challenges

I keep getting the network error when trying to complete the color challenge

I can't get past the color challenge due to this network error issue. I'm reading the threads, but honestly I'm just wanting someone to fix it. Posting this cause I can't finish the red challenge.

It says "Network Error" but I've used it on multiple devices and on different internet connection spots/locations so I think it is something wrong with my account.

Unable to join the last color challenge of Lilliana. It apears "network error" message. My internet it´s working right, so that´s not the problem.

When I try to play the color challenge, in Lilliana's last challenge where I'm supposed to play with some other player online, I get a "network error" message. That is, it does not allow me to play and complete the challenge.
I need help because it's the only challenge I need to complete all of them.
I have searched for help in the mtg arena forums on facebook. The only thing they have told me is that I modified the deck, but I haven't.
I need urgent help with this problem.
It should be noted that I have no internet problems, the computer on which I play is connected via ethernet cable
First of all, Thanks.

Same issue for me, appears that I cannot do the final stage of each color challenge

Can't finish the colour challenge just keeps coming up with network error, up to the 5th battle in all of the color challenges and it keeps showing the same error.

I have cleared the data, cleared the catch, uninstalled the app, reinstalled, tried on multiple different devices, PC, Android, iPhone and it still doesn't work.

Has anyone found a workaround for this or will they fix this zoom?? Seems like many people are encountering this.