ipad mini2 downgrade exploit fail

[FindYourBattle]

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

What is your macOS version?
macOS 13.6.4

What is the device you're trying to downgrade?
ipad mini2 (A1489)

What is the LeetDown version you're using?
2.2

**Enable debugging in LeetDown's settings and copy and paste LDLog.txt here. **
when execute downgrade, terminal show this:

[main] Waiting for device in DFU mode...
[io_get_serial] Found serial number!
[main] CONNECTED
[main] CPID: 0x8960, BDID: 0x0a, STRG: [iBoot-1704.10]
** exploiting with checkm8
[checkm8_s5l8960x] reconnecting
[io_reset] ResetDevice: 0
[io_reset] USBDeviceReEnumerate: 0
[checkm8_s5l8960x] running set_global_state()
[set_global_state] (1/3) sent: 40, val: 580
[set_global_state] (2/3) e000404f
[set_global_state] running heap_spray()
[heap_spray] (1/3) e000404f
[heap_spray] (2/3) 0
[heap_spray] (3/3) e0004051
[set_global_state] (3/3) e00002ed
[checkm8_s5l8960x] reconnecting
[checkm8_s5l8960x] USBDeviceReEnumerate: 0
[checkm8_s5l8960x] running heap_occupation()
[heap_occupation] (1/3) e000404f
[heap_occupation] (2/3) e0004051
[heap_occupation] (3/3) e000404f
[checkm8_s5l8960x] reconnecting
[checkm8_s5l8960x] USBDeviceReEnumerate: 0
[io_get_serial] Found serial number!
attempting to connect 1/5
connected 1/5

Additional info (optional)
Thank you!