Powerbox deletes script on reset - 6.38.1

Hi all,
Serious problem on at least 2 Powerboxes on 6.38.1, setps to reproduce:
Do a system reset configuration with no default config.
Using winbox connect via Mac and add an address to say, ether2, 192.168.88.1/24
Now, using cli:

[admin@MikroTik] > system resource print 
                   uptime: 11m8s
                  version: 6.38.1 (stable)
               build-time: Jan/13/2017 05:51:35
         factory-software: 6.34.4
              free-memory: 46.9MiB
             total-memory: 64.0MiB
                      cpu: MIPS 24Kc V7.4
                cpu-count: 1
            cpu-frequency: 650MHz
                 cpu-load: 9%
           free-hdd-space: 5.7MiB
          total-hdd-space: 16.0MiB
  write-sect-since-reboot: 699
         write-sect-total: 2837
               bad-blocks: 0%
        architecture-name: mipsbe
               board-name: PowerBOX
                 platform: MikroTik


[admin@MikroTik] > export 
# jan/02/1970 00:11:57 by RouterOS 6.38.1
# software id = S686-7SJC
#
/ip address
add address=192.168.88.1/24 interface=ether2 network=192.168.88.0


[admin@MikroTik] > export file=r1

[admin@MikroTik] > file pr
 # NAME                            TYPE                                  SIZE CREATION-TIME       
 0 flash                           disk                                       jan/01/1970 00:00:00
 1 pub                             directory                                  jan/02/1970 00:12:11
 2 r1.rsc                          script                                 153 jan/02/1970 00:12:36
 3 flash/log.0.txt                 .txt file                              394 feb/16/2017 00:54:23
 4 flash/skins                     directory                                  jan/01/1970 00:00:02

[admin@MikroTik] > system reset-configuration no-defaults=yes run-after-reset=r1.rsc 
Dangerous! Reset anyway? [y/N]: y

After reset there is no config at all and worse still r1.rsc has disappeared!

Please help

NTB

EDIT: Works perfectly on RB3011 -6.38.1

Sorry to bump this. No Mikrotik folk seen this? How do I report bugs?

Thanks

I have reported problems with this procedure some time ago and nothing has changed it seems.
However, to report problems you need to mail to support@mikrotik.com not post here.

your r1.rsc is stored on ram disk, not flash disk so its lost after reboot. put it into the flash folder to keep it persistent.