VacuumPro presets offset by 1 upon reload in REAPER [SOLVED]

[XilburQost]

UPDATE: Never mind. The mistake is mine. There’s an instrument change in some midi I imported and it was triggering VacuumPro presets. Fantastic synth!

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I'm loving VacuumPro v1.0.7 with REAPER (v6.23/win64) under Windows 10. Problem: In a REAPER project I'll select a preset in VacuumPro, say #14, but when I later re-open the project, the VacuumPro preset value has changed from 14 to 13, i.e., the preset value has deincremented by 1.

Doesn't matter which preset I choose, when I re-open the project the value has deincremented by 1.

Any suggestions? Thanks.

FYI, I tried registering my VacuumPro purchase on AIR Music Technology's website today, but the input forms freeze and crash.

Thanks.