the problem with the store crashing is WOTC's fault.
the featured tab of the store is what crashes. If you have not purchased the mastery of the game. you can get into the store that way buy attempting to purchase. DO NOT go to the feature tab.
https://www.youtube.com/watch?v=5WjvqWJiPd0

Same, sometimes I get this Unity error.

THERE IS A WAY TO ACCESS THE SHOP: go to player profile, change avatar, select one of the avatars from the store (like Rakdos), you'll be redirected to the store page without crash, JUST DON'T GO TO THE FEATURED PAGE OR THE GAME WILL CRASH, you can navigate the other sections (gems, packs etc.)

Same issue here; tried reinstalling after uninstall and cleanup of known folders in program files and appData\LocalLow to no avail.
Started with no access to Eldraine Mastery (did work on another device), recently evolved to no access to store whatsoever.
Want my money? Fix this!

Game crashes when i click on Store tab and when i try to purchase mastery pass

when i click in a product to buy inthe store, the game spends some minutes loading and when its finally ready instead of the window for buying a receive a message :"weve got completely lost following that link, please close that window and return to whereyou were".

Hello,

It sounds like you may need some more troubleshooting advice, please submit at: https://mtgarena-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.

Thanks!

same thing with me screen just goes black and there's clearly a BOT telling us to report to that email thing cause i emailed it and they told me there is nothing they can do

Also thank you to the person that told us it was accessible to gems you can access store if you click on gems. LIFESAVER thank you

Same happening to me.

The work around listed below by JDRoss of clicking on the gems and avoiding the featured page did work for me.

I am also having this problem where as soon as I click on the store menu item my screen goes black and I can still move my cursor around but can't access options or do anything anymore. Before the latest patch it would get stuck in this state, but now it exits the game after a few seconds and another program pops up quickly to record a log or something. I was also getting similar behavior to try to buy the mastery pass before and ended up working around it by getting it on my wife's computer.

my game crash every time i open the store it happend after the threos update

Same!
I cant access the store either. Whenever I click on anything that leads me there, the game freezes during the black loading screen. It does keep playing the music though.
Highly annoying!

Hello, I got a SHOP crashing problem each time i access it.

I think its related to the new pet from Eldraine.

I cant convert gold to booster pack anymore. I cant purchase mastery pass. Game blocker and stopper. This game is awesome, please fix this bug in first priority.

When i try to open the store it freezes and sometimea kicks me off the game. I am trying to buy bundles and mastery pass but can not open the store

I have not been able to access the store for over a week now.

I have uninstalled and re-installed twice with the lastest download and updates.

The program does one of 3 things at this point, It either freezes and hangs on a black screen or it crashes with no message or it crashes with a grey MTG message box for a short while.

Update: This is specifically through the store tab on the main menu. After a little more investigation I can access it through the gems icon.

BUT the 'featured' menu item casues the program to crash

Hello,

It sounds like you may need some more troubleshooting advice, please submit at: https://mtgarena-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.

Thanks!

Same thing is happening to me...WOTC needa to fix this. Theros will be out in less than a month and i cant buy the pre release

I'm running windows 10. Same or similar issue. When I click the store tab, screen goes black except for the pointer. And the program stops responding. If I go to the packs and click 'get packs', I can back door into the store that way. Sometimes clicking on the other store sub-tabs (featured, gems, etc) causes it to freeze. Sometimes it doesn't.

Hello,

It sounds like you may need some more troubleshooting advice, please submit at: https://mtgarena-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.

Thanks!

Hello,

It sounds like you may need some more troubleshooting advice, please submit at: https://mtgarena-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.

Thanks!

I share here also the files I sent to WotC.