It’s not. 
We’ve been able to put in a few fixes that should hopefully address some of the issues players were experiencing and are still looking into other cases as we go.
The machines aren’t going anywhere, and so there is no rush to get everything right this moment— it won’t harm anything if you decide to wait.
Um yeah we can. I got my fill of it after the initial quest. Wasnt worth the time. So boring.
Thanks for the updates and info!
I haven’t logged in this week yet, but it sounds like a lot of fun.
I did try this, and unfortunately, they all still come up as having looted them. I also logged in this morning and nothing has changed that I noticed. I’m still 1 foil short of upgrading my Maiev figure despite looting all the foils, which other people are having similar problems.
I’m hoping that a fix will be implemented for those of us who are having such problems as opposed to being SOL on being able to upgrade each figure fully and getting the achievements.
I’ll see if any changes or fixes get implemented, I’ll look at it if/when they occur. I’ll likely add my problems in the Bugs section in the meantime.
—30 days until Blizzcon starts (Nov. 3rd)!—
hopefully you can fix the inability to use foil upgrades if you turn in all the coins already. Quest to turn in a coin just keeps showing up and won’t let me use my last 2 foil upgrades
Same stuck with 1 foil in bag that I can’t turn in for my last upgrade.
I think this is what messed me up. I picked up the coin and foil in the inn then talked to the quest giver and she took the coin away from me because of the quest. I looted everything (didn’t realize I could upgrade twice so I screwed up Maev) and now I have 3 foils and no coins and can’t get Sneed.
I’m the opposite, I just have 1 foil left and cannot upgrade my Sneed to max.
I have one left to get, I thought I finished and saw there are seven to get, not six.
I had the problem of getting the coin quest, when I had no coins to get, but not letting me update a foil, I retook and abandoned the coin quest, and then went back to the machine and was able to upgrade.
Just add some more foils and coins without adding extra rewards.
A fast and simple fix.
I have 1 foil eaten by a bug(probably used 3rd time on something) and can’t get others because they don’t exist.
Just a heads up: If your inventory is full when you open a Rumble Box, the toy is placed on the ground, but you don’t get the collectible toy in your inventory, (as there is no way to get extra coins) so you can be missing entire toys in your collection. I had this happen with Maiev.
Looking forward to additional fixes, as I’ve used all foils already but still missing one upgraded toy. Guessing one of them took 3 instead of 2… So I’m out some achievements until a hotfix fixes something 
I LOVE this! I collect figures and cant wait for this!
I’ll be on the list waiting for a fix to come in. I still have 1 foil but no quest to turn in. Lacking the last Maiev upgrade to complete it. Tried logging multiple times, finally just closed the game and decided to do something else.
Please stop sending these mails from Mizzen to every character, multiple times even! I’m not even going to mess with this at all until bug fixes are implemented, and I surely don’t need to get these in game mails over and over again.
Looking forward for the Foil issue and thank for letting us know it not going away Was worry this will go away soon as Nove 3rd pass, Never less Offering of Extra Foil is welcome.
I see a lot of people are having issues with the Coins and Foils that sucks.
Does anyone know if we get these “heroes” and tints in Rumble since its suppose to be a cross game event?
I was just wondering because that would be cool. HotS had neat events like that with other blizzard games where both games you played would benefit.
Thanks
I upgraded all of them! 
But, the upgrades only work when they want to. 
Pretty neat, honestly.
This was probably the worse cross-promotional event ever…
Blizz: Play our new game! Here are some free toys to get you excited!
Us: Why would we try your new game when you can’t even get the promotion event to work in your 20-year-old game?
Blizz: We’re uhhhhhh, working on it. Yeah. Have an extra event invite.