This bug was pre-dated before the release of v3, but I failed to merge the patch before the release, which should be fixed in the next minor update.
Ah, my bad. This should be fixed in the next minor release, too.
The reason why I did not make it a popup is that the currency list is dynamic. If Alfred supports that, please let me know how I can configure it.
I've opened an issue regarding this on the repository, and I'll look into how I can improve it in the next few days.
I just ran some checks and can confirm that this bug did exist. Additionally, I'm still looking into some possible fixes for this.
Anyway, thank you so much for all the feedback. I'll manage to get them fixed soon.