Problem with Elk "last user" and F key rules

[WayneW]

I have added the following rules recently, which seem to be working properly.
55 WHENEVER KEY F6 ON KEYPAD2 ACTIVATES
THEN TOGGLE Easy Armed flag (Out 54)
56 WHENEVER Easy Armed flag (Out 54) STATE IS TURNED ON
AND XX(Area 1) ARM STATE = DISARMED
THEN ARM AREA(S) 1 TO STAY IMMEDIATELY
57 WHENEVER Easy Armed flag (Out 54) STATE IS TURNED OFF
AND XX(Area 1) IS ARMED STAY
THEN DISARM AREA(S) 1 IMMEDIATELY

These rules should only involve User 203, if I understand correctly.

The problem is that I have old rules involving other users that now get triggered, such as:
37 WHENEVER XX(Area 1) ARM STATE BECOMES disarmed
AND LAST USER WAS YYYY (User 12)
THEN TURN YYY Home (Out 30) ON

SO:
Any idea why rule #37 and others like it are triggering when the control is disarmed from F6?
Does "user 203" not become the "last user"?
Am I missing something or is this a bug?

The log doesn't show user 12 had any activity:
23:44,1,1174 = AREA DISARMED,"No Code" (User 203)
23:39,1,1293 = AUTOMATIC CLOSING,
23:39,1,1173 = AREA ARMED,"No Code" (User 203)


I have reported this to Elk support also and I am awaiting a reply.

M1G 4.5.21 (also happened with 5.1.14)
RP 1.6.26
XEP 1.3.7 (also happened with 1.2.14)