I have updated postman to last version. and any time i want to see any collection doc, i see these error. Happen to all collections. on the previous version all was fine. the “switch to markdown editor” didn’t work too.
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Welcome to the Postman Community! 
I’ve flagged this with the team to take a look at, appreciate your reporting this issue.
I’ll update the thread once I have more information. 
how can i switch to my working postman version?, i’m blocked to continue workning.
Can you confirm if this is working for you again?
You might need to reload the app. 
Yes, i reset the mac and work again……
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