Suddenly unable to publish to our PTC experience server

Question

Hi folks--
This is primarily aimed at PTC support folks. We have suddenly stopped being able to publish to our Vuforia experience server (PTC-hosted). Everything was working last week, but now we can't publish. We get 403 errors, "Insufficient permissions to access resource".
We are able to log into Thingworx Composer and seem to have all the correct permissions there. It seems to be something between the ES and Thingworx that's broken.
We need to get this fixed as soon as possible, because we need to be able to publish and test demo experiences for our customers.
@ytella or @tmccombie can you help get this resolved please? Sorry to ping you directly like this, but apparently this is the only route for tech support available to PTC partners, and the need is urgent. Thanks!

tmccombie · Accepted Answer

@ClayHelberg  Looks like the app key on your TWX server had expired. You should be all set now. Please let me know  if you are still facing issues.

dupatel · Answer

@ClayHelberg Could you review the article- https://www.ptc.com/en/support/article?n=CS268110 and validate the steps especially from 6 onwards -

Assigning Publish permissions to the User:

In ThingWorx, navigate to Security > User Groups, next to group filter field, click on Advanced and check the Show System Objects
Select Developers group and click on Edit Members
From the Edit members dialog box, drag and drop the new user into the right panel
Click on Save
Since ThingWorx 8.5, steps 6 to should be done
In Permissions > Collections > Resources menu
In Design Time menu
In Search Users or Groups field, enter Developers string
In list, in new row added about Developers, switch on the Read Permissions
Click the Save button
In Vuforia Studio, validate by publishing a sample Project

-Durgesh

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