Ventura: Impossible to mount 2x SD cards at once

I tested Ventura 13.1 on M1 Pro MacBook Pro and M1 iMac. I use different devises of multiple SD card readers. One is 4 cards, the other is 3 cards. Both on them can’t work properly in both systems. Disk utility recognized all cards but finder can display 1 or 2 cards. I tested all my different cards. Result is the same. I downgraded both machine to Monterey and they work with no issue. This is an embarrassed bug Apple hasn’t fixed on an officially released OS.

Some other info to characterize the issue.

1. Finder recognizes whichever card is inserted first, and that card works as expected no matter if it was formatted in DiskUtility or in the (Fuji) Camera. If it was a problem with how the camera was formatting the card, why would this be the case?
2. When the second card is plugged in, DiskUtility shows it as mounted, but it is invisible to Finder, DiskUtility also reports: Capacity: 125.21 GB, Available: 479.99 GB, Used: -354.78 GB. (Those are some wacky numbers DiskUtil is reporting!)
3. If that same card is the first card to be mounted, DiskUtility reports Capacity: 125.21 GB, Available: 125.19 GB, Used 17.4MB
4. When both cards are mounted (with one still invisible to Finder), if you eject the "invisible" card, then the "visible" card stays mounted. But if you try to eject only the "visible" card, then BOTH cards are unmounted
5. When both cards are mounted (with one being invisible) DiskUtil shows a Volume icon for the "visible" SD card, but a Folder icon with a red alert for the "invisible" card
6. If you use DiskUtil to rename the "invisible" SD card , and then eject it, DiskUtil still shows an unrelated APFS Data Volume on the main Macintosh HD WITH THE NEW NAME THAT YOU TRIED TO GIVE THE SD CARD even after that SD card is ejected and unplugged.

That last part makes me want to stop testing this completely, if DiskUtil is mixing up what drives are what, then this seems really dangerous. I don't care if Apple wants to blame camera manufacturers for how they format an SD card in-camera, DiskUtil should not be RENAMING other unrelated partitions as a result of that. That is the part that really suggests this is an Apple problem

This is macOS Ventura 13.1

For me, it looks like Ventura 13.2 may have fixed some of these issues. I can now see two camera-formatted SD cards plugged in at the same time. That's a positive development

Please update to the latest version of Ventura… Fortunately, they corrected the problem with the last update.

When I updated my MacBook Pro with M1 Pro chip with Ventura 13.2, this issue has been solved.

Paul Tansley wrote:

On my 16" MacBook Pro - running Ventura running 13.0.1

The current stable release of Ventura including bug fixes, security updates is macOS Ventura 13.1 I would start there.

Keep your Mac up to date - Apple Support

Keep your Mac up to date - Apple Support

I waited almost 1 month before they came up with 13.2, pal.

Both formatted FAT32 via macOS. Not camera cards. Test if the cards formatted on a Mac and then used on the A9 mount better than cards formatted in the A9.

If Sony has firmware updates for the A9, check in the release notes if they resolve card mounting in macOS as a specific fix.

Apple is not responsible for how Sony formats its SD cards and it is up to Sony to make it work properly with the current macOS, or at least have a caveat on their A9 camera page that gives you an incompatibility heads up.

I would contact Sony about this, and would not take the brush off that its Apple's fault (when SD cards from Canon do work).

Impossible is a state of mind… 🧐 RIght now, with Ventura 13.1, I have two SDHC cards mounted via a USB 3.2 hub. Differently named cards (e.g. Tools and UTILITY).

One of the key mentions about Apple beta is that you should never install a work in progress operating system on a production Mac as it could worse case brick it and get you sideways with your employer.