I always run the most recent version of the software, either the beta or the production version. I check for updates on a weekly basis. I tried 2.2.0 on two different cars (both with the most recent software prior to 2.2.0) One is S300v1 with a very low serial number (~300ish) The other car has v2 and was ordered about 2 months ago.
I only upload to the ECU from a laptop unless I need to get a calibration from a "new" car, both these cars were started from scratch by me and the calibrations were never pulled from the ECU.
The fail to start was immediate, both cars loaded with engine off-key on. When the load was successful, I cycled the key off and attempted to start with S300 manager not connected. Both cars were done in the same manner.
One car (v2) was rolled back to 18.104.22.168 and left like that. The other car (v1) has not been against the soft rev limiter but so far has worked fine, other than when I close S300 manager, there is a "abnormal program termination" window that pops up repeatdly, this might be my laptop acting up as it is getting old...
H22 GT3076R E85, EK Hatch, Dyno Shootout Car...
603 WHP, 565 WHP, 631 WHP, 596 WHP, 600 WHP, 610 WHP, 631 WHP, 560 WHP, 578 WHP
different dynos, different days, different altitudes,same set-up, bottom line...~600ish WHP come get some!!!