I'm having a problem in my back-end playground, ... I can open the 'DOCS' window, and it displays two columns. But whenever I click on any option under 'Arguments' in the second column, it expands to show the options in the third columns, but immediately collapses by itself, back to only displaying the first two columns. If I can quickly click on a 'Type Details' option, in the third column, it will expand to the fourth column and stay open. This is happening for all Queries and Mutations on both of my services. Everything was working fine 2 days ago... I have edited the schema in one service but not the other. Any ideas?

Just checked and I have the same problem

also if an error is returned from a query or mutation, it just flashes for a second before the console clears itself