USB's showing in disk utility but MacBook Air unable to read files

Intel MacBook Air 2018 16.GHz Dual Core intel core i5 running Sonoma 14.8

I have two USB FAT32 sticks which used to work and give access to files on the MacBook Air but recently have stopped working.

They both still work normally when I plug them into my Mac mini 2018 running Sequoia 15.7.

The sticks show on disk utility but will not mount:

USB 3.1 Bus:

  Host Controller Driver:     AppleUSBXHCITR

  PCI Device ID:                  0x15ec 

  PCI Revision ID:               0x0006 

  PCI Vendor ID:                  0x8086 

  Bus Number:                    0x00 

 SanDisk 3.2Gen1:

  Product ID:                                     0x5595

  Vendor ID:                                      0x0781  (SanDisk Corporation)

  Version:                                          1.00

  Serial Number:0101463a82eaa6a97f882c302924173c965c8830d1fd1972c6100fcb200e769dd81500000000000000000000378f2dd0ff192e0095558107cba95061

  Speed:                                            Up to 5 Gb/s

  Manufacturer:                                USB

  Location ID:                                    0x00100000 / 1

  Current Available (mA):                  900

  Current Required (mA):                  896

  Extra Operating Current (mA):       0

  Media:

SanDisk 3.2Gen1:

  Capacity:                     61.53 GB (61,530,439,680 bytes)

  Removable Media:      Yes

  BSD Name:                 disk2

  Logical Unit:                0

  Partition Map Type:     MBR (Master Boot Record)

  SMART status:            Verified

  USB Interface:             0

  Volumes:

DISK2:

  Capacity:           61.53 GB (61,530,423,296 bytes)

  File System:       MS-DOS FAT32

  BSD Name:        disk2s1

  Content:             DOS_FAT_32

  Volume UUID:    9C2F4EFF-64EE-3849-92DC-4FBE00A81DFF

System info also shows the two ports and the sticks.

I’ve run Apple diagnostics which has not raised any errors with the code ~ ADP000.

I have reset the PRAM, NVRAM & SMC several times without success and carried out first aid without errors.

The data below comes from Terminal which also shows disk2 identified:

Last login: Fri Sep 19 16:54:45 on ttys001

The default interactive shell is now zsh.

To update your account to use zsh, please run `chsh -s /bin/zsh`.

For more details, please visit Page Not Found - Official Apple Support

MacBook-Air:~ macbookair$ diskutil list

/dev/disk0 (internal, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *121.3 GB   disk0

   1:                        EFI EFI                     314.6 MB   disk0s1

   2:                 Apple_APFS Container disk1         121.0 GB   disk0s2

/dev/disk1 (synthesized):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      APFS Container Scheme -                      +121.0 GB   disk1

                                 Physical Store disk0s2

   1:                APFS Volume Macintosh HD - Data     54.2 GB    disk1s1

   2:                APFS Volume Preboot                 2.4 GB     disk1s2

   3:                APFS Volume Recovery                1.2 GB     disk1s3

   4:                APFS Volume VM                      20.5 KB    disk1s4

   5:                APFS Volume Macintosh HD            10.3 GB    disk1s5

   6:              APFS Snapshot com.apple.os.update-... 10.3 GB    disk1s5s1

/dev/disk2 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     FDisk_partition_scheme                        *61.5 GB    disk2

   1:                 DOS_FAT_32 DISK2                   61.5 GB    disk2s1

MacBook-Air:~ macbookair$ 

Can anyone give me a fix for this please so that I can read the files again on a USB stick connected to the MacBook?

Thank you