Sorry for a delay...
You need to manualy update the firmware.
www.st-rock.com/AmperiumSupport/firmware_2.20.zip
There are was 2 problems:
1. Toggling to scene with bypassed delay or reverb was drop the tails. That was fixed...
2. In scene C in the REV section you are uses a shimmer from multieffect.
Unfortunaly multieffects are not supporting tails. So this problem is not solved.
Can't say if it will be fixed at all. But not till to your saturday show for sure. (
so 50/50 -(
How update firmware manualy:
1. Enter to Recovery Mode ( power off, insert USB, press and hold Control knob, power on)
2. In the software in the right bottom corner press to icon "magnifying glass with gear" and select unzipped file from the link.
3. Press UPDATE FIRMWARE.
WBR, Vasilius st.Rock