[Xiaomi Mi Mix 2S ROMs, Kernels, Recoveries, & Othe] Hitchi:
Anyone can help... made a backup using v5 and updated MIUI 8.6.14 (global) to 8.7.19 (xiaomi.eu) and restore of data is not working (maybe because of different TWRP versions?):

what I've done:

1. backup 8.6.14 with TWRP v5

2. wiped and format data

3. installed MIUI 8.7.19 (eu version)

4. went through setup procedure

5. tried to restore data partition only

here the recovery log

InfoManager loading from '/data/media/0/TWRP/BACKUPS/6365a930/2018-07-23--17-43-24_xiaomieu/data.info'.
I:Read info file, restore size is 12535378944
I:Multiple archives
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
Invalid encryption mode file /data/unencrypted/mode
I:First tar file '/data/media/0/TWRP/BACKUPS/6365a930/2018-07-23--17-43-24_xiaomieu/data.ext4.win000' not encrypted
I:Setting archive type
I:Extracting uncompressed tar
==> extracting: //data/miui/ (mode 40755, directory)
==> extracting: //data/miui/cust_variant (file size 2 bytes)
did not find newline char in expected location, continuing anyway...
==> extracting: //data/bootchart/ (mode 40755, directory)
restoring policy 1DK > '70c1ff897c000000' to '//data/bootchart/'
did not find newline char in expected location, continuing anyway...
==> extracting: //data/misc/ (mode 41771, directory)
*** using existing directory
did not find newline char in expected location, continuing anyway...
==> extracting: //data/misc/bluedroid/ (mode 42770, directory)
restoring policy 1DK > '70c1ff897c000000' to '//data/misc/bluedroid/'
==> extracting: //data/misc/bluedroid/bt_config.bak (file size 2003 bytes)
tar_extract_file(): failed to extract //data/misc/bluedroid/bt_config.bak !!!
I:Unable to extract tar archive '/data/media/0/TWRP/BACKUPS/6365a930/2018-07-23--17-43-24_xiaomieu/data.ext4.win000'
Error during restore process.
I:Error extracting '/data/media/0/TWRP/BACKUPS/6365a930/2018-07-23--17-43-24_xiaomieu/data.ext4.win000' in thread ID 0
I:Error extracting split archive.
Error during restore process.
extractTarFork() process ended with ERROR: 255
I:Set page: 'action_complete'
I:operation_end - status=1
I:Set page: 'clear_vars'
I:Set page: 'restore_select'
I:TWFunc::Set_Brightness: Setting brightness control to 5
I:TWFunc::Set_Brightness: Setting brightness control to 0
I:TWFunc::Set_Brightness: Setting brightness control to 4095
I:TWFunc::Set_Brightness: Setting brightness control to 5
I:TWFunc::Set_Brightness: Setting brightness control to 0
I:TWFunc::Set_Brightness: Setting brightness control to 4095
I:Set overlay: ''
I:Set page: 'restore'
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'advanced'
I:Set page: 'copylog'
I:Set page: 'action_page'
I:operation_start: 'Copy Log'
I:Copying file /tmp/recovery.log to /data/media/0/recovery.log

When I now try to flash back the v5 recovery I'm in a bootloop (only v7 works but no restore of data).

I've also tried a dummy backup and copied my old data in it with the same result