Inconsistent block sizes aren't currently supported for .ebsp files

I get the error: 'Inconsistent block sizes aren't currently supported for .ebsp files'

Could you please explain what this means and if there is any way to resolve?

Oxford Instruments systems now produce a .h5oina which includes patterns and should be easier to parse due to it being a h5.

The issue names no source files, tests, or entry points. Start by locating the .ebsp parsing code and the source of the inconsistent-block-size error, then determine the intended handling for Oxford Instruments .h5oina files; done requires an agreed resolution and verification for the reported input.

Written by the indexing model from the issue text.