Hi Vincent, my details are:
Exact trainer: CycleOps Magnus (original)
Device running Zwift: Samsung Galaxy Tab S4 SM-T830
Game version: 32519
Trainer firmware version: 31.042 (27.031)
I tried turning off the trainer and turning back on after launching Zwift as you suggest but this made no difference. The trainer pairs as controllable but no control of resistance from the start.
Exact trainer: CycleOps M2
Device running Zwift: Samsung Note 9 via Bluetooth
Game version: 32519
Trainer firmware version: 31.042 (27. 031)
Exact trainer - Cylcops Magnus (11119)
Device running Zwift - Samsung S9
Game version - v32-1.0.32519
Trainer firmware version - 31.042
I just used the Android app for the first time and had the same problem described above.
Here are the details:
Exact trainer - Cylcops Magnus
Device running Zwift - Samsung S8+
Game version - v32-1.0.32519
Trainer firmware version - 31.042
I got a reply back from Zwift support. They said try Windows! I’m not impressed. What’s the point of having a beta if you’re not going to listen to any of the feedback or try to solve the problems that arise?
I tried again with the latest update (1.0.32984). Still no resistance changes.
Same issue fo cycleops h2. Got no reply from customer service.
I don’t see any reason for this, competitors such as Rouvy and Bkool has all platform applications working with no issue.
Hi all, is everyone still having issues with Cycleops magnus resistance?
Yes, still having problems even with the latest Zwift version (1.0.32984). Trainer connects as “Controllable” but no change in resistance in ERG or SIM mode. Cadence and power reported correctly throughout.
Exact trainer: CycleOps Magnus (2017)
Device running Zwift: Samsung Galaxy Tab S4 SM-T830
Game version: 32984
Trainer firmware version: 31.042 (27.031)
Still not working here either. Latest update applied. Galaxy Note 9
Are Devs actually looking at this and trying to test, or just hoping if we power fail and re-pair Bluetooth enough times it will magically work?
It seems this is same issue for all CycleOps smart trainers. I have same issue on my new most updated H2 trainer using it with ZUK Z2 phone. everything is runnig really well , al the dta is correctly displayed , and game runs smoothly . The only issue is the rainer resistance control doesn’t function.
On the Android Rouvy application it runs perfectly well with same devices.
Tried again with the latest update (42-1.0.33271), still no change in resistance. When are the Zwift developers going to do something about this? Ignoring the problem hasn’t made it go away.
I see the following in the logs, I’m not sure why it says “No Controllable found” then shows the trainer on screen as controllable or why it says “BLE KICKR Setting Sim Mode” when I don’t have a Wahoo Kickr:
[7:39:01] BLE : Starting Native BLE search
[7:39:01] BLEDevice_StartSearch() scanning = 0
[7:39:01] BLE : Set scanning flag = 1
[7:39:01] Starting critical power curve search job (1320038355) mTimeStamp = 10.02101 m_lastSearchTime = 10.02101 calculating=false
[7:39:01] BLE : Pair: Magnus 17103 (0) m_id = 281082035, address = D6:1F:1A:45:9C:4A
[7:39:01] BLE : …was scanning, Stop (wcb test)
[7:39:01] BLE : …No Controllable found
[7:39:01] BLE : Pair: Magnus 17103 (0) m_id = 281082035, address = D6:1F:1A:45:9C:4A
[7:39:01] BLE : …Calling pTrainer->OnPaired !
[7:39:01] BLE KICKR Setting Sim Mode
[7:39:01] BLE : Set scanning flag = 0
[7:39:02] BLE : UCS: CONNECTED: D6:1F:1A:45:9C:4A, con count: 1
[7:39:02] BLE : didConnectPeripheral D6:1F:1A:45:9C:4A, Attempting to Discover Services
[7:39:02] NETWORK:error (6) sending player state
[7:39:03] NETWORK:error (6) sending player state
[7:39:03] BLE : Pair: Magnus 17103 179 (1) m_id = 281082035, address = D6:1F:1A:45:9C:4A
[7:39:03] BLE : …Calling pTrainer->OnPaired
Well done Zwift developers. Last bersion from 8 of mars build 1.0.34047 supports the cycleops h2 as wrriten on relase notes. Kudus!!!
Working for me too. Great work. Now all we need is ANT+ support 
I gave in and bought a Bluetooth heart rate monitor. Everything works as expected now. It’s a better experience than on Windows to be honest. Loads faster, updates are smoother, it just works. It’s just a shame I had to fork out for a new heart rate monitor when there was nothing wrong with the one I had - Zwift you owe me £24.99.