Macbook, running OS X 10.13.4
BIAB version 2018 (258)
Preferences 1
Audible lead in is checked
Volume 5
Instrument=hand clap
Pattern 1-3- 1- - -the reason I listed the above settings is that
No matter what my settings are, I get
Volume +-20
Instrument=side stick
Pattern 1-3-1234

I click OK, which is the only logical option and none my new settings are saved.
I regenerated the song, no new settings
I restarted BIAB, still no new settings are saved.
What’s going on?
For reference a second Macbook computer running BIAB 2016. Ver.(146)
OS X 10.7.5 no problems.