Red Dimmer - Difficulty updating firmware

Good morning
I’ve tried to update the firmware on two of my red dimmers using the new device firmware update app, but things have not gone well.
One of my dimmers got to 15% on target 0 before failing the upload. Now the light strip is stuck on red (though it is otherwise reponsive).
The other one uploaded successfully, but never contacted the hub after completing the upload. It has been blinking blue and unresponsive for twelve hours now. I even held the config button for 20 seconds to reset it but there has been no change.

I’m not sure where to go with either of these. Thoughts?

Okay, I got the first one fixed by retrying the update till it worked.

The second one is still eternally blinking blue though, and when I try to update it it won’t even respond with a target list.