can't save acls on disk

[sles]

Just installed fresh ubuntu 16.04 and ejabberd 16.01 from it.

I configured (yml) ldap authentication and declared myself as admin:

acl:
  ##
  ## The 'admin' ACL grants administrative privileges to XMPP accounts.
  ## You can put here as many accounts as you want.
  ##
  admin:
     user:
         - "dm": "jabber.mydomain"

Then started ejabberd and login through web interface.

I see that in host config acl database is in RAM (I'm back translating from russian).

If I set it to RAM & disk then acl database file appears, but if I restart ejabberd it removes file and
I see RAM in database config via web interface.

If I set only disk, then ejabberd dies with errors:

2016-07-21 13:02:43 =CRASH REPORT====
  crasher:
    initial call: ejabberd_http:init/2
    pid: <0.920.0>
    registered_name: []
    exception error: bad argument: [{ets,lookup,[acl,{admin,global}],[]},{acl,get_aclspecs,2,[{file,"src/acl.erl"},{line,349}]},{acl,match_acl,3,[{file,"src/acl.erl"},{line,346}]},{acl,match_acls,3,[{file,"src/ac
l.erl"},{line,276}]},{ejabberd_web_admin,'-is_acl_match/3-fun-0-',3,[{file,"src/ejabberd_web_admin.erl"},{line,88}]},{lists,any,2,[{file,"lists.erl"},{line,1224}]},{ejabberd_web_admin,'-make_server_menu/4-lc$^0/1
-0-',3,[{file,"src/ejabberd_web_admin.erl"},{line,2890}]},{ejabberd_web_admin,make_server_menu,4,[{file,"src/ejabberd_web_admin.erl"},{line,2888}]}]
    ancestors: [<0.472.0>,ejabberd_listeners,ejabberd_sup,<0.38.0>]
    messages: []
    links: [#Port<0.8866>,#Port<0.8865>]
    dictionary: []
    trap_exit: false
    status: running
    heap_size: 28690
    stack_size: 27
    reductions: 53249
  neighbours:
2016-07-21 13:02:43 =CRASH REPORT====
  crasher:
    initial call: ejabberd_http:init/2
    pid: <0.1344.0>
    registered_name: []
    exception error: bad argument: [{ets,lookup,[acl,{admin,global}],[]},{acl,get_aclspecs,2,[{file,"src/acl.erl"},{line,349}]},{acl,match_acl,3,[{file,"src/acl.erl"},{line,346}]},{acl,match_acls,3,[{file,"src/ac
l.erl"},{line,276}]},{ejabberd_web_admin,'-is_acl_match/3-fun-0-',3,[{file,"src/ejabberd_web_admin.erl"},{line,88}]},{lists,any,2,[{file,"lists.erl"},{line,1224}]},{ejabberd_web_admin,get_auth_account,5,[{file,"s
rc/ejabberd_web_admin.erl"},{line,269}]},{ejabberd_web_admin,process,2,[{file,"src/ejabberd_web_admin.erl"},{line,222}]}]
    ancestors: [<0.472.0>,ejabberd_listeners,ejabberd_sup,<0.38.0>]
    messages: []
    links: [#Port<0.8879>,#Port<0.8880>]
    dictionary: []
    trap_exit: false
    status: running
    heap_size: 2586
    stack_size: 27
    reductions: 3836
  neighbours:

And

2016-07-21 13:02:43.963 [error] <0.1344.0> CRASH REPORT Process <0.1344.0> with 0 neighbours crashed with reason: bad argument in call to ets:lookup(acl, {admin,global}) in acl:get_aclspecs/2 line 349

Just because ejabberd 2 on ubuntu 12.04 runs with acls in RAM&disk just fine I think this is ejabberd bug.