How to delete storage in 'Other Volumes in Container'? As you can tell from the picture I have the majority of my disk storage being taken up by 'Other Volumes in Container' leaving me with less than 20GB to actually use. Running Mojave 10.14.2 on a 2015 Macbook Pro 

Here are the fixes I have attempted:


Contacted Apple support, it has been 2 weeks and they have been unable to fix it 
Wiped disk and reinstalled OS. Note: the 97GB of 'Other volumes in Container' still remains after the disk wipe and before the reinstall of OS 
Turned network caching on and off 
Used Omnidisksweeper
Searched in activity monitor for any suspicious activities as well as running an antivirus scan 
reindexing spotlight 
ran diskutil list in terminal and it shows Preboot, Recovery and VM only taking up approximately 2GB
I had this same problem too, I solved by this step

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 未命名 - 数据           93.1 GB    disk1s1
   2:                APFS Volume Preboot                 82.4 MB    disk1s2
   3:                APFS Volume Recovery                528.3 MB   disk1s3
   4:                APFS Volume VM                      1.1 GB     disk1s4
   5:                APFS Volume mac - Data              13.7 GB    disk1s5
   6:                APFS Volume mac                     11.3 GB    disk1s6
   7:                APFS Volume Untitled                487.4 KB   disk1s7

   /dev/disk2 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            Fonedog-PowerMyma-1... +162.5 MB   disk2

   /dev/disk3 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            OmniDiskSweeper        +25.2 MB    disk3


then delete the 93.1 GB    disk1s1

diskutil eraseVolume APFS Blank /dev/disk1s1


all done