So this device was healthy and already running UBI formware normally, then you flashed sysupgrade and since then it always drops you to recovery mode (ie. you see only 2.4ghz wifi and configuration won't survive reboot)? Please confirm in detail, so I can understand what's going on.
The recovery you are running comes from v0.5 UBI installer from what I can tell and that should be working fine.
What is happening is probably that the device has crashed and because of that is now starting recovery for you to figure out what was happening and report to us 
Please open SSH console on the device and check PSTORE/ramoops content and report back the output:
ls -1 /sys/fs/pstore
cat /sys/fs/pstore/*
After that, you can delete the PSTORE content which should make the device return to boot normally.
rm /sys/fs/pstore/*
Disconnecting the power from the device for 10-15s should also make it forget PSTORE content in RAM and return to normal operation.