Here is my report to Boss email tech support:
I updated to BTS 1.1.1 under Mac OS 10.12. However, when I load my previous patches, some assigns do not work. Further, starting with a factory preset, I cannot program some assigns. For example, assign 1, target category=delay, target = e.level, target min = 0, target max = 90, source = exp1 off, sir mode = momentary s.rangemin = 0, s.range max = 127. However, sweeping the exp1off pedal does not control the delay e.level. I have tried this with assign1 and assign5.