This is two examples of the same EXR file opened up in the most recent, and the older version that worked okay for me.
The first one shows up upside down, the second one in addition to that, is misreading the input size and displays incorrectly (setting correct custom res fixes this).
IIRC, the second one might have been saved as 16bit float, rather than 32bit float in Blender.
Right, yea. They were EXR sequences, so I just grabbed the first one of each, which might have been not the ones in a screenshot. The behavior was same regardless.
Most point cloud files don’t have an explicit pixel layout, so the Point File In TOP tends to default the pixels into a square format for convenience. EXRs were previously an exception that maintained their original image dimensions, but this feature was unfortunately lost during some 2023 updates. The behaviour should be restored now in the next update.