The addition of modifyAssetLocation in #343 would indeed help fixing #341, I have a PR with a working test coming up to confirm that. However, we use the --path option to separate the build and test runs, and then modifyAssetLocation doesn't work anymore, I suspect because this.modifyAssetLocation is set during the build phase, so it's not defined anymore when using an existing build. This is again something that I could confirm with a failing test.