Same issue. Macbook Air 2014.
Sleep Wake failure in EFI
Failure code:: 0x0171260e 0x0000001f
Please IGNORE the below stackshot
================================================================
Date/Time: 2020-09-02 20:50:03 -0500
OS Version: ??? ??? (Build ???)
Architecture: x86_64
Report Version: 29
Data Source: Stackshots
Shared Cache: 0x88c8000 02FD1F49-8D6E-3525-9FBA-C3B631982301
Event: Sleep Wake Failure
Duration: 0.00s
Steps: 1
Time Awake Since Boot: 31s
Process: swd [394]
Architecture: x86_64
Footprint: 360 KB
Start time: 2020-09-02 20:50:03 -0500
End time: 2020-09-02 20:50:03 -0500
Num samples: 1 (1)
Thread 0x83d 1 sample (1) priority 3 (base 4)
<thread QoS background (requested background), thread darwinbg, process darwinbg, IO tier 2>
1 start + 1 (libdyld.dylib + 109769) [0x7fff6f8e8cc9] 1
1 ??? [0x108de3454] 1
1 ??? [0x108de31dd] 1
1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 135862) [0x7fff6fa4a2b6] 1
*1 ??? [0xffffff80002c1206] 1
*1 ??? [0xffffff8000984c37] 1
*1 ??? [0xffffff800089d7c1] 1
*1 ??? [0xffffff80002e49e7] (running) 1
Binary Images:
0x7fff6f8ce000 - 0x7fff6f904fff libdyld.dylib (750.6) <789A18C2-8AC7-3C88-813D-CD674376585D> /usr/lib/system/libdyld.dylib
0x7fff6fa29000 - 0x7fff6fa55fff libsystem_kernel.dylib (6153.141.1) <2B6311E6-6240-3EF7-8C87-475B66F7452C> /usr/lib/system/libsystem_kernel.dylib
Model: MacBookAir6,2, BootROM 122.0.0.0.0, 2 processors, Dual-Core Intel Core i5, 1.4 GHz, 4 GB, SMC 2.13f15
Graphics: kHW_IntelHD5000Item, Intel HD Graphics 5000, spdisplays_builtin
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x80CE, 0x4B3445384533303445452D45474345000000
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x80CE, 0x4B3445384533303445452D45474345000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x117), Broadcom BCM43xx 1.0 (7.77.111.1 AirPortDriverBrcmNIC-1615.1)
Bluetooth: Version 7.0.6f7, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
USB Device: USB 3.0 Bus
USB Device: Internal Memory Card Reader
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: MacBook Air, Apple Inc., 23.6