Version 3.6.X broken

[Kunzol]

Unfortunately TWRP for montana from version 3.6 is not working anymore.

Error: failed to load kernel!

Version 3.5 and lower still work.

[jaysonwcs]

I can't flash the new 3.6.X versions, it gives me error. Only version 3.5.X is working.

[Kunzol]

Version 3.7 still same problem.

Trying to boot into TWRP (3.7.0) recovery shows this on the screen.

Start up failed:
Your device didn't start up successfully
Use the Software Repair Assistant on computer
to repair your divice.
Connect your device to your computer to get
the Software Repair Assistant.

AP Fastboot Flash Mode (Secure)
Error: Failed to load kernel!
Fastboot Reason: Fall-through from recovery boot mode

If it helps the fastboot getenv all output (minus the device specific info):

(bootloader) version: 0.5
(bootloader) version-bootloader: moto-msm8937-BC.12
(bootloader) product: montana
(bootloader) board: montana
(bootloader) secure: yes
(bootloader) hwrev: P3
(bootloader) radio: 4
(bootloader) storage-type: emmc
(bootloader) emmc: 32GB SKHYNIX HBG4a2 RV=08 PV=A5 FV=00000000000000A5
(bootloader) ram: 3GB SKHYNIX LP3 DIE=8Gb M5=06 M6=04 M7=00 M8=5F
(bootloader) cpu: MSM8937
(bootloader) serialno: X
(bootloader) cid: 0x0032
(bootloader) channelid: 0x40
(bootloader) uid: X
(bootloader) securestate: flashing_unlocked
(bootloader) iswarrantyvoid: yes
(bootloader) max-download-size: 535822336
(bootloader) reason: Fall-through from recovery boot mode
(bootloader) imei: X
(bootloader) date: 07-15-2017
(bootloader) sku: XT1794
(bootloader) carrier_sku: 
(bootloader) battid: X
(bootloader) iccid: 
(bootloader) cust_md5: 
(bootloader) max-sparse-size: 268435456
(bootloader) current-time: 
(bootloader) ro.build.fingerprint[0]: motorola/montana_n/montana_n:8.1.0
(bootloader) ro.build.fingerprint[1]: /OPPS28.65-37-7-11/7f8a6:user/rele
(bootloader) ro.build.fingerprint[2]: ase-keys
(bootloader) poweroffalarm: 0
(bootloader) ro.build.version.full[0]: Blur_Version.28.281.15.montana.re
(bootloader) ro.build.version.full[1]: tail.en.US
(bootloader) ro.build.version.qcom: LA.UM.6.6.r1-08600-89xx.0
(bootloader) version-baseband: M8937_37.13.03.75R MONTANA_EMEADSDS_CUST
(bootloader) kernel.version[0]: Linux version 3.18.71-perf-g1c8179f (hud
(bootloader) kernel.version[1]: soncm@ilclbld69) (gcc version 4.8 (GCC) 
(bootloader) kernel.version[2]: ) #1 SMP PREEMPT Sun Aug 11 12:40:44 CDT
(bootloader) kernel.version[3]:  2019
(bootloader) sbl1.git: git=MBM-NG-VBC.12-0-g77d3670
(bootloader) rpm.git: git=bd76357-dirty
(bootloader) tz.git: git=57946dd
(bootloader) devcfg.git: git=57946dd
(bootloader) keymaster.git: git=57946dd
(bootloader) cmnlib.git: git=57946dd
(bootloader) cmnlib64.git: git=57946dd
(bootloader) prov.git: git=57946dd
(bootloader) aboot.git: git=MBM-NG-VBC.12-0-g0b9dae9
(bootloader) frp-state: no protection (0)
(bootloader) ro.carrier: reteu
(bootloader) current-slot: 
(bootloader) slot-suffixes: _a
(bootloader) slot-count: 1
(bootloader) slot-successful:_a: INVALID
(bootloader) slot-successful:_b: INVALID
(bootloader) slot-bootable:_a: INVALID
(bootloader) slot-bootable:_b: INVALID
(bootloader) slot-retry-count:_a: unknown
(bootloader) slot-retry-count:_b: unknown

Booting to system works as expected. Just getting into TWRP Recovery is not possible.

Flashing TWRP 3.5.2_9-0 still works.