RPC_MESSAGE_TIMEOUT when using Apollo Client

[leonardfountain]

Error on Cache tab:

ApolloError: RPC_MESSAGE_TIMEOUT

ApolloError
    at new t (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:336837)
    at chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:374825
    at i (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:344588)
    at chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:344502
    at new Promise (<anonymous>)
    at Object.then (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:344468)
    at Object.next (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:344598)
    at st (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:256763)
    at lt (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:257276)
    at t.next (chrome-extension://jdkknkkbebbapilgoeccciglkfbmbnfm/panel.js:1:257816)

Additional details

I am just trying to connect to Apollo dev tools to see cached data and whatnot, because right now my Apollo client appears to not be caching any data.

@apollo/client version

Apollo Client Devtools version

4.18.2

[phryneas]

This error usually occurs when your browser updates the DevTools while they are already opened and connected to your page (see #1476).

Could you please try to restart your browser and see if that makes it work again?