Recently I switched from Lineage OS to Pixel Experience on my Xioami Mi 9t device. I made a backup of all my apps and data trough Titanium Backup and an update.zip file. 

After flashing Pixel Experience and going through the setup I installed Titanium Backup on my phone and rebooted into TWRP to install the update.zip file. It flashed the zip file with no errors and automatically rebooted the phone into system. 

However nothing happened and my apps and data were not restored. Then I wanted to restore them manually but trying to access my backup location on my external USB drive I found out I could not access my backup folder anymore, which was located at: `/storage/extSdCard/Android/data/com.keramidas.TitaniumBackup`

It is extremely frustrating knowing I have done everything to backup my apps and data but not being able to restore them anyway. If anyone knows a solution to this problem tell me, I would really appreciate your support.