Second Hard Drive missing after 10.15.2 update

[bobbytomorow]

I have a MacBook with 2 hard drives (one in the optical bay). On one hard drive I run just Mac OS and on the other I have it partitioned into 2 sections, one labeled "Windows" is for Windows 10 bootcamp and is NTFS and the other partition labeled "Data" is exFat to share data between the two OS's. I have been running this setup for a few years now through multiple updates without a problem...BUT suddenly both partitions from that drive have disappeared from my Mac desktop. Disk Utility shows the drive but will not complete first aid nor does it show the old labels (Data & Windows)

This seemed to have happened right after the last Catalina update. Any help on getting those partitions back would be great I have a lot of important data on the data partition.

Strangely if I hold down the option key I can still manually boot into Windows and from Windows I can see and access the Data partition still. this seems to be a Mac OS only problem.

 

[J.Gallardo]

I have a MacBook with 2 hard drives (one in the optical bay). On one hard drive I run just Mac OS and on the other I have it partitioned into 2 sections, one labeled "Windows" is for Windows 10 bootcamp and is NTFS and the other partition labeled "Data" is exFat to share data between the two OS's. I have been running this setup for a few years now through multiple updates without a problem...BUT suddenly both partitions from that drive have disappeared from my Mac desktop. Disk Utility shows the drive but will not complete first aid nor does it show the old labels (Data & Windows)

This seemed to have happened right after the last Catalina update. Any help on getting those partitions back would be great I have a lot of important data on the data partition.

Strangely if I hold down the option key I can still manually boot into Windows and from Windows I can see and access the Data partition still. this seems to be a Mac OS only problem.

...Not sure if something I recently read (sorry, no link) has to do with that: someone told that after upgrading his MacBook, ports failed (one of them).
He was talking about non-working charger, but he fixed it by unplugging everything, restarting, and plugging devices in different sockets. After that, ports worked ok, and even could use them restoring devices to original place.
Well... It's not too difficult to give a try...