Yep still going, ECU Studio did merge and that went badly, so support is taking longer, Have you emailed
[email protected]? Include the ECU-Studio.log file from C:\Users\%Username%\AppData\Roaming\ECU Studio (paste this into explorer). That will let them see what happened, and proves you are not trying to scam a licence

(believe me people do

)
My ECU Studio is at 6.0 and I had no issues, but then again not all systems are the same as I am on the Pro.
Your ECU wont be bricked, that's a very difficult thing to do, and I cant think of a single Eldor I've heard has been bricked. If you can't read the ECU, e.g failed flash then the bootloader will still work. V5 V6 etc is the PC program not the ECU bootloader etc. Once you have a valid licence, then you will be able to talk and recover the ECU.
What happened?
If you modified tables Offline (disconnected from ECU), when you went to flash it would say no licence and not flash. Or did it start to flash and then fail during the flash?