Simon Thor

Thank you for the detailed explanation and for providing an alternate solution! Thinking of awkward arrays as structs instead of maps definitely makes it easier to understand.

Thank you for the quick response! Sorry for the simple mistake in my minimal example (which was apparently too minimal...) Here is a new minimal example where the program crashes...

Actually, I now realize that the problem is not the root file, but rather only the selection operation. This seems to crash as well: ```python a = ak.Array({"x": [1., 2.,...

I see, thank you for looking into this! If it is intended behavior, then noting down the supported array types in the documentation would be very helpful, in case someone...