Array test failing for seemingly no reason.

[Example](https://buildkite.com/julialang/metal-dot-jl/builds/1300)

I filed an issue so this is not forgotten as my attempt to investigate (#440) made the error go away.

Happens with `Int64` according to [this](https://buildkite.com/julialang/metal-dot-jl/builds/1308#01924403-f1b2-4701-981d-e56603aba8d9) run. Could be with others