Error when using ensure with expect metrics

[graytonio]

Version info:

Running from github action
docker.io/artilleryio/artillery:latest

Running this command:

run-fargate

I expected to see this happen:

Checks being evaluated and no error message at the end of the run.

Instead, this happened:

Test run completed: ty3x5_k9qb66y6q4py8yjmh8xjfh8fbg8ag_reaf [14:05:54]
Error: Lexical error on line 1. Unrecognized text.
...d4ca727fa9cdd0cff73'.hasProperty/'5f9d02
-----------------------^
    at Parser.parseError (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1229:19)
    at Object.parseError (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1434:36)
    at Object.next (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1576:33)
    at Object.lex (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1584:30)
    at lex (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1268:36)
    at Parser.parse (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1287:34)
    at compileExpression (/home/node/artillery/node_modules/artillery-plugin-ensure/node_modules/filtrex/dist/cjs/filtrex.js:1815:23)
    at /home/node/artillery/node_modules/artillery-plugin-ensure/index.js:168:17
    at Array.forEach (<anonymous>)
    at EnsurePlugin.runChecks (/home/node/artillery/node_modules/artillery-plugin-ensure/index.js:156:25)

Checks:
fail: (plugins.expect.ok.hasProperty/http.requests) * 100 >= 99.9
ok: (vusers.completed-vusers.failed/vusers.created) * 100 >= 99.9
ok: http.response_time.p99 < 300000

Files being used:

Plugins Config:

plugins:
    expect: {}
    ensure:
      thresholds:
        - 'http.response_time.p99': 300000
      conditions:
        - expression: '(vusers.completed-vusers.failed/vusers.created) * 100 >= 99.9'
        - expression: '(plugins.expect.ok.hasProperty/http.requests) * 100 >= 99.9'

Expect Config:

- post:
     expect:
     - contentType: json
     - hasProperty: "data.graph.publishSubgraph.didUpdateGateway"