C6 transfer dropping note length info

Just got the Analog Keys, it’s beautiful synth in sound and design. I was trying to send sysex via C6 of a kit and pattern, and as a test I tried to import it back via C6. I noticed that the note lengths of some of the parts was missing in the pattern.

After a few more send/receive tries with C6 I was able to successfully backup and import my kit and pattern with note length info intact.

Has anyone else experienced this? Or know of a fix? Thanks.