Unable to assign new array drive, system keeps clearing the assignment

[MrWuf]

The system notified me last week there was a smart error on Disk 4 of my array.  It automatically disabled the drive.  I shutdown my system, installed a new drive (of the same size), and precleared the new drive without issue. 

The new drive shows up as an option for Disk 4 but after selecting it, the screen flashes and the assignment is cleared. 

 

Any help would be greatly appreciated.

[itimpi]

You should post your system's diagnostics zip file in your next post in this thread to get more informed feedback.  It is always a good idea to post this if your question might involve us seeing how you have things set up or to look at recent logs.

[MrWuf]

Thank you for responding @itimpi, good point. 

I think my issue is now resolved.  Turns out my Flash drive was read-only.  I wasn't able to run error check via Windows (I kept getting the device is write protected), so I followed the instructions for replacing my Flash drive (restoring from a backup & transferring my license). 

I was then able to select the replacement drive, start the array, and am now waiting for the rebuild to complete.  🤞