It's really hard / impossible to reliably recreate, and as mentioned only seems to happen once out of every few hundred builds.
The code in question:
(Yes, this is terrible code but it works 99% of the time.)
The erring output looks like this:
A recompile fixes the output and spits out this:
The issue from the first compilation results in a runtime error of "priorities__$1 is not defined"
We are using
Sorry, but we're not sure. We use CircleCI which is likely a linux flavor.
shadow-cljs is our build tool at 2.4.10.