[Sony Cross-Device General] ch3mn3y:
[MENTION=1871006]leap_ahead[/MENTION]

Not sure what doesn't flash with Your .ftf, but here I have everything OK (at least when simulating). Here You have the log of simulation of F3112 33.3.A.0.127 Saudi Arabia:

16/052/2017 17:52:23 - INFO - Selected Bundle for Sony Xperia XA(F3112). FW release : 33.3.A.0.127. Customization : Saudi Arabia

16/052/2017 17:52:23 - INFO - Preparing files for flashing

16/053/2017 17:53:11 - INFO - Please connect your device into flashmode.

16/053/2017 17:53:11 - INFO - Start Flashing

16/053/2017 17:53:11 - INFO - Processing loader.sin

16/053/2017 17:53:12 - INFO - Checking header

16/053/2017 17:53:12 - INFO - Flashing data

16/053/2017 17:53:12 - INFO - Max packet size set to 512K

16/053/2017 17:53:12 - INFO - USB buffer size set to 512K

16/053/2017 17:53:15 - INFO - Parsing boot delivery

16/053/2017 17:53:15 - INFO - Found a template session. Using it : E:\Flashtool\firmwares\prepared\33.3.fsc

16/053/2017 17:53:15 - INFO - Set loader configuration : [00 01 00 00 00 0C]

16/053/2017 17:53:15 - INFO - Opening TA partition 2

16/053/2017 17:53:15 - INFO - Writing TA unit 00002774. Value : 01

16/053/2017 17:53:15 - INFO - Closing TA partition

16/053/2017 17:53:15 - INFO - Processing partitions.sin

16/053/2017 17:53:15 - INFO - Checking header

16/053/2017 17:53:15 - INFO - Flashing data

16/053/2017 17:53:15 - INFO - Set loader configuration : [00 01 00 00 00 0D]

16/053/2017 17:53:16 - INFO - Set loader configuration : [00 01 00 00 00 0F]

16/053/2017 17:53:16 - INFO - Processing preloader_s1sbl_PLATFORM-MT6755-LIVE-1FD6-ROOT_S1-BOOT-LIVE-CF2A-0004-MMC.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Set loader configuration : [00 01 00 00 00 0D]

16/053/2017 17:53:16 - INFO - Set loader configuration : [00 01 00 00 00 0C]

16/053/2017 17:53:16 - INFO - Opening TA partition 2

16/053/2017 17:53:16 - INFO - Processing lk2_PLATFORM-MT6755-LIVE-1FD6-EMBEDDED_S1-BOOT-LIVE-CF2A-0004-MMC.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing lk_PLATFORM-MT6755-LIVE-1FD6-EMBEDDED_S1-BOOT-LIVE-CF2A-0004-MMC.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing logo_PLATFORM-MT6755-LIVE-1FD6-EMBEDDED_S1-BOOT-LIVE-CF2A-0004-MMC.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing tee1_PLATFORM-MT6755-LIVE-1FD6-EMBEDDED_S1-BOOT-LIVE-CF2A-0004-MMC.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing tee2_PLATFORM-MT6755-LIVE-1FD6-EMBEDDED_S1-BOOT-LIVE-CF2A-0004-MMC.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Closing TA partition

16/053/2017 17:53:16 - INFO - Opening TA partition 2

16/053/2017 17:53:16 - INFO - Writing TA unit 0000084F. Value : 1A CE 2C 00 01 00 07 05 00 02 02 10 00 10 05 00 01 02 68 00 10 04 00 03 01 01 00 04 00 04 81 01 00 02 00 04 85 05 00 05 82 68 00 10 02 00 05 85 12 00 02 00 A9 09 BE BA A9 09 00 00 00 FA BE BA 00 FA 00 00 04 00 03 00 02 00 04 00 04 00 B8 0B 0E 00 06 00 58 1B 01 4B 00 00 00 03 96 00 96 00 07 00 07 00 00 00 00 40 00 03 00 09 00 01 05 00 08 00 01 96 00

16/053/2017 17:53:16 - INFO - Writing TA unit 000008FD. Value : 00

16/053/2017 17:53:16 - INFO - Closing TA partition

16/053/2017 17:53:16 - INFO - Opening TA partition 2

16/053/2017 17:53:16 - INFO - Processing cache.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing apps_log.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing diag.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing Qnovo.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:16 - INFO - Processing kernel.sin

16/053/2017 17:53:16 - INFO - Checking header

16/053/2017 17:53:16 - INFO - Flashing data

16/053/2017 17:53:17 - INFO - Processing fotakernel.sin

16/053/2017 17:53:17 - INFO - Checking header

16/053/2017 17:53:17 - INFO - Flashing data

16/053/2017 17:53:17 - INFO - Processing md1arm7.sin

16/053/2017 17:53:17 - INFO - Checking header

16/053/2017 17:53:17 - INFO - Flashing data

16/053/2017 17:53:17 - INFO - Processing md1dsp.sin

16/053/2017 17:53:17 - INFO - Checking header

16/053/2017 17:53:17 - INFO - Flashing data

16/053/2017 17:53:17 - INFO - Processing md1img.sin

16/053/2017 17:53:17 - INFO - Checking header

16/053/2017 17:53:17 - INFO - Flashing data

16/053/2017 17:53:20 - INFO - Processing system.sin

16/053/2017 17:53:20 - INFO - Checking header

16/053/2017 17:53:20 - INFO - Flashing data

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - INFO - Processing userdata.sin

16/053/2017 17:53:23 - INFO - Checking header

16/053/2017 17:53:23 - INFO - Flashing data

16/053/2017 17:53:23 - INFO - Processing oem.sin

16/053/2017 17:53:23 - INFO - Checking header

16/053/2017 17:53:23 - INFO - Flashing data

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - WARN - Unit 2212 not found in bundle

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - WARN - Unit 2311 not found in bundle

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - WARN - Unit 2330 not found in bundle

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - WARN - Unit 2404 not found in bundle

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - INFO - Processing elabel.sin

16/053/2017 17:53:23 - INFO - Checking header

16/053/2017 17:53:23 - INFO - Flashing data

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Opening TA partition 2

16/053/2017 17:53:23 - INFO - Writing TA unit 00002725. Value : 32 30 31 37 2D 30 36 2D 31 36 20 31 37 3A 35 33 3A 32 33 00

16/053/2017 17:53:23 - INFO - Writing TA unit 00002774. Value : 00

16/053/2017 17:53:23 - INFO - Closing TA partition

16/053/2017 17:53:23 - INFO - Ending flash session

16/053/2017 17:53:23 - INFO - Flashing finished.

16/053/2017 17:53:23 - INFO - Please unplug and start your phone

16/053/2017 17:53:23 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings

There are few WARNs, but that's because I didn't add the ta files to created ftfs, so they are missing. However I don't think they are important or needed.