Error in 9.2.1 when prefix colors have spaces

[ReedSoftware]

Describe the bug

• Description: Updating from 9.2.0 to 9.2.1 causes an error like so:

> ./node_modules/.bin/concurrently -k -n "test-app-1, other-app-2" -c "yellow.bold, cyan.bold" "echo 1" "echo 2"

/home/runner/work/my-project/node_modules/rxjs/dist/cjs/internal/util/reportUnhandledError.js:13
            throw err;
            ^

TypeError: Cannot read properties of undefined (reading 'bold')
    at <snip>/node_modules/concurrently/dist/src/logger.js:50:36
    at Array.reduce (<anonymous>)
    at getChalkPath (<snip>/node_modules/concurrently/dist/src/logger.js:50:10)
    at Logger.colorText (<snip>/node_modules/concurrently/dist/src/logger.js:144:21)
    at Logger.logCommandText (<snip>/node_modules/concurrently/dist/src/logger.js:170:29)

• Expected Behavior: concurrently to run both programs successfully
• Environment: Occurs both in GHA running ubuntu-latest and in macos 26.1 -- concurrently 9.2.1 -- nodejs 24.x
• Reproduction: ./node_modules/.bin/concurrently -k -n "test-app-1, other-app-2" -c "yellow.bold, cyan.bold" "echo 1" "echo 2"

If I run npm i -D concurrently@9.2.0 then rerun this exact same command, it immediately works again.

Looks like the changes here v9.2.0...v9.2.1#diff-7bc1140e724e284ae22084e1172568baa8d151063d02c75ed1d8805fa7796acaR12 in src/logger.ts are to blame?

[gustavohenke]

Hey, thanks for submitting this issue. Can confirm it, but not always - the issue comes and goes every few tries.
I'm wondering if it's a race condition somewhere.

[gustavohenke]

Actually, I see it. You have a space between the colours, so concurrently tries logging its outputs with cyan.bold, rather than cyan.bold. I think that at 9.2.0 that just falls back to white.
And the flakiness I observed before is from the kill others flag not kicking in before the other command outputs something.

So a quick fix is to remove that space, but I'll also implement an actual fix for this.