Issues with shopify.web.toml background role

[bpaul18]

I am using Shopify's recommended remix app.
In the root directory I have a shopify.web.toml file (the default)

name = "app"
roles = ["frontend", "backend"]
webhooks_path = "/webhooks"

[commands]
dev = "npm exec remix dev"

[hmr_server]
http_paths = ["/ping"]

When i run npm run dev this works perfectly and I can access the app in my test store.

Now I want to add a background process using the "background" role talked about in this link: https://shopify.dev/docs/apps/tools/cli/structure#background-process

I made a folder in the root directory and I have a js file and another shopify.web.toml file with this in it

name = "pubsub"
roles = ["background"]

[commands]
dev = "node pubsub.js"

When I run npm run dev in the root directory, both processes startup (i can see output from each process in the terminal) however when I try to access the app within my test shop it won't load and I get this error:
"Error forwarding web request: AggregateError"

I'm not entirely sure why and I don't know how making a background process with another shopify.web.toml is causing the error when it works when I don't have the second process running.

[ccanete]

Hi @bpaul18, have you find any solution for this issue ?

[dangreaves]

This has been fixed in the latest version of the CLI (3.66.0).

https://github.com/Shopify/cli/issues/4309