import from legacy boostnote showing error

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I'm also having trouble importing my old notes, but I'm getting a different error: EISDIR: illegal operation on a directory, read.
When trying to import legacy notes, I get the following error:
Cannot read property 'map' of undefined
I've tested the note import both on Ubuntu 18.04 (Linux x64 4.15.0-121-generic) and OSX (Catalina) with the same error.
Current version of BoostNote: 0.10.1
Legacy BoostNote version: 0.15.3
The location where I import the notes as well as where the notes are exported to doesn't seem to matter.
when I import it 'works' in that i see the gui creating folders and looping over notes. it overwrites the same note every time and I end up with 1 note in every folder.
legacy 0.16.1
next 0.11.5
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I'm also having trouble importing my old notes, but I'm getting a different error:
EISDIR: illegal operation on a directory, read.