Results occasionally blank or with incorrect count

[joonaskeppo]

On occasion, a query like the following:
{:find [?product] :where [[?product :id "some-id-here"]] :limit 100}
will return something like "0 results in x ms", but still contain a singular valid document link.
The JS console prints out:

Received content for non-existant element:  13 msg: 
message { target: WebSocket, isTrusted: true, data: '[[13,"R","<span data-rl=\\"13\\">1 results in 2,36ms</span>"]]', origin: "ws://localhost:8880", lastEventId: "", ports: Restricted, srcElement: WebSocket, eventPhase: 0, bubbles: false, cancelable: false, … }

Other times, it might return a blank table (along with the "0 results in x ms" message).

Server-side logs seem fine (no errors, only DEBUG level logs)

This is not a consistent issue, as omitting the value for :id above consistently produces "100 results in x ms" along with 100 document links ({:find [?product] :where [[?product :id]] :limit 100}).

Tested with Chrome, Firefox.