Restore succeeded! but can't down

[hiuschan]

Describe the bug
A clear and concise description of what the bug is.

What is your macOS version?
e.g. macOS 11.6

What is the device you're trying to downgrade?
e.g. iPad Air 1

What is the LeetDown version you're using?
e.g. 2.1

**Enable debugging in LeetDown's settings and copy and paste LDLog.txt here. **

Additional info (optional)

Model Name: iPad Air (Cellular)

=====================================
[+] Verifying iPSW
[+] Successfully verified the iPSW
[+] iPSW selected at /Users/sing/Downloads/iPad_64bit_10.3.3_14G60_Restore.ipsw and being extracted to /var/folders/70/456q0vjd08x09dd55hnrfct00000gp/T/iPSW
[+] Extracting the iPSW please wait...
[+] Successfully extracted the iPSW
[+] Exploiting device...
[+] Successfully exploited device!
[+] Fetching OTA blob
[+] Saved blob to file:///Users/sing/Downloads/ipadair. Keep it safe!
[+] sendFile() is attempting to connect
[+] Sucessfully sent /dev/null
[+] 5 second cooldown, re-plug now if needed on Apple Silicon
[+] sendFile() is attempting to connect
[+] Sucessfully sent /var/folders/70/456q0vjd08x09dd55hnrfct00000gp/T/iPSW/Firmware/DFU/iBSS.ipad4.RELEASE.im4p
[+] 5 second cooldown, re-plug now if needed on Apple Silicon
[+] sendFile() is attempting to connect
[+] Sucessfully sent /var/folders/70/456q0vjd08x09dd55hnrfct00000gp/T/iPSW/Firmware/DFU/iBEC.ipad4.RELEASE.im4p
[+] 5 second cooldown, re-plug now if needed on Apple Silicon
[+] Starting restore process
[+] Restore succeeded!