I hit the same thing. Worked out the answer above myself. 
had the same problem with upgrading both A4 and AR from 1.21C. no overhub, no overbridge mode though.
amusingly, in my case, all it took was clicking send in c6 a second time. didn’t even have to bother with resetting either the elektrons or my macbook. really all it took was a second click…
1 Like
Thanks, that fixed it for me.
Now let’s see if OB actually works in Logic!
Same here…tried everything (even OB settings)…plugging directly into my iMac and not by USB hub did the trick, no idea why.
Maybe its best to upgrade the Rytm OS first? I didn’t which meant I had to use a regular MIDI cable to send the sysex, nothing showed up at the RYTM from C6 via USB after I upgraded to OB 1.10.0. check port config to make sure you can receive to the regular port.
I had a similar problem. I plugged my AR into my keyboard usb (Mac) and this was the problem. Once I plugged the AR directly into an USB-port on the back of my iMac, it worked.
found it.
Analog Rytm Mk 2 with this issue. Tried C6, Midi, USB, TM1, Sysex Librarian nothing works.
How do you update this?
Same issue with 1.46 beta. I am “ready to receive” forever. Story of my life.
2 Likes
I managed to update mine by trying a different mac. Go figure!
My digitakt is stuck too. I was so happy to try the computer then it showed me why I’m dawless
Thanks for circling back, I’ll try that. I might have a few of those laying around!
Tried another Mac. Didn’t have Transfer on it yet, nor overbridge. Downloaded the 1.46 beta, Transfer and Overbridge. Installed in order Overbridge (rebooted), then Transfer. Transfer recognized the RYTM MK2 and moving the syx file to it was instant, then it rebooted. So a different mac worked for me too. Hopefully the solution in the future isn’t a 3rd or 4th because 2 is all I have! 
It could also just be fresh installs of overbridge and transfer, or that I was paying closer attention! Who knows?! Lotsa luck.
I tried with a different computer and still doesnt work! just dont know what to do!!!
Sorry - I’m no expert. What happens when you run Transfer? When I launch Transfer and the AR is connected (and ports set at MIDI config/Port Config to USB in and USB out), Transfer starts on the Connections screen. I can select Analog RYTM Elektron MIDI there for MIDI in and MIDI out, and Connect then “connects” which takes me to the Drop screen. Once you’re there you’re all set I think. You plop the new syx file in there and it should be automatic from there. If you don’t get to the point where Transfer sees the AR, I’m not sure where to go. Probably not worth continuing to try different computers, rather troubleshoot the main one and get it going from there.
Also, on System menu / USB config / Overbridge mode is checked.
Good luck!
i did that john. once i drop the sys file on transfer it should transfer automatically like you say but it just doesnt. the AR stays on this waiting mode.
Sorry, one more thing. Are you using C6 or Elektron Transfer? I couldn’t do it using C6 but was successful with specifically the Transfer program:
saw your other post re the corrupt file. good news!
Mine is also stuck on waiting for sysex. Unfortunately, I do not have a leftover mac computer to spare. Maybe there is something with the 1.46 beta causing this error?
Same problem here.
Tried first on mac then tried also on a windows PC with Transfer but AR wasn’t able to connect at all.