Aaron Lun

I don't know why it doesn't work for you. The following minimal example works fine for me. ```r library(BiocFileCache) bfc

Depends on whether you can provide a minimum reproducible example.

Thanks @LachlanD, that was a useful diagnosis. See the linked issue in the **SummarizedExperiment** repo for the follow-up.

Sounds like a `SummarizedExperiment` problem rather than a SCE problem, we don't do any special handling of the assays other than to call down to the SE method for combining...

That's barely even 10000 cells, which is certainly not what I'd consider to be "large". I will note, though, that historically the traceback for the error has been generated by...

This error occurs at a lower level, inside the `SummarizedExperiment` constructor that we delegate to: ```r se

This is because `combineCols`'s generic has `x` as its first argument, so when you have a named list where no element is named `x`, the `x` is missing. Not really...

> One of them is that if you define a method for a given class, then dispatch will select that method only if _all_ the supplied arguments have that class:...

At least one current problem is that I always initialize the backend with `bpstart` at the top of functions that involve several parallelized steps, and the following fails: ```r library(BiocParallel)...

FWIW I had similar problems with test outputs changing due to numeric precision issues on different builders/architectures. The most recent example involved differences in rounding for single-precision `std::exp()` on between...