"Unable to find the session to touch" error message

[D-32]

• I'm submitting a ...
  [X] bug report
  [ ] feature request
  [ ] question about the decisions made in the repository
  [ ] question about how to use this project

• Summary
  When I set something in the user's session I get the following error in the console:

(node:29342) UnhandledPromiseRejectionWarning: TypeError: callback is not a function
    at /Users/[...]/node_modules/connect-mongo/src/lib/MongoStore.ts:326:9
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
(node:29342) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:29342) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Everything still gets stored correctly though.

MongoStore.ts:326:

return callback(new Error('Unable to find the session to touch'));

Any ideas why this might be happening?

• Other information
  connect-mongo version: 4.6.0
  mongodb version: 4.1.0
  node: v14.17.1 (but also happening in v12)

Thanks!

[mingchuno]

Might relate to #351

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[D-32]

I'm still having this issue dear stale bot