i'm having this same issue but i don't have two sources. i created the snmp access in the gui.
[admin@sisldbp1:Active] ~ b snmpd list
snmpd {
allow {
"127."
"10.160.19.16"
"10.160.19.17"
"10.160.9.129"
"10.242.11.29"
"10.160.9.132"
}
include "com2sec6 f5 default public
com2sec6 f5 127.0.0.1 internal
group f5 v1 f5
group f5 v2c f5
group f5 usm f5
group mygroup v1 mynet
group mygroup v2c mynet
group mygroup usm mynet
view all included .1 80
access f5 \"\" v1 noauth exact all all none
access f5 \"\" v2c noauth exact all all none
access f5 \"\" usm noauth exact all all none
"
load max1 5
load max15 5
load max5 5
syscontact "Customer Name "
syslocation "Network Closet 1"
sysservices 78
community iR3_D0n7y_1 {
access ro
community name "STRING"
ipv6 disable
oid none
source "10.160.9.132"