Router FW not replying to incoming packets

Hi there,
Thanks for reading!

We introduced MT to our network. We replaced Meraki FWs at our branch sites and are very satisfied. We are finding however two sites which are not responding to our Solarwinds server. Sniffer at the branch router shows SWinds packets arriving to port 161 but there’s never any return traffic. The other sites work fine without any additional configuration.

Here’s the router FW rules. The SWinds server is on the 192.168.0.0 network.
Thanks again!
Bob

0 chain=input action=accept in-interface=GRE-Uplink

1 chain=forward action=accept src-address=0.0.0.0/0 in-interface=GRE-Uplink
log=no log-prefix=“”

2 X ;;; FastTrack
chain=forward action=fasttrack-connection hw-offload=yes
connection-state=established,related

3 chain=forward action=accept src-address=10.0.0.0/8 in-interface=GRE-Uplink

4 chain=forward action=accept src-address=192.168.0.0/16
in-interface=GRE-Uplink

5 ;;; Established, Related
chain=forward action=accept connection-state=established,related

6 chain=input action=accept protocol=gre src-address=branch.public.ip.network/25
in-interface=br-wan

7 chain=input action=accept protocol=ipsec-ah src-address=branch.public.ip.network/25
in-interface=br-wan log=yes

routing & filtering is only 1 part, what about the /ip/snmp settings ? Enabled ? Correct settings ?
What about the OUTPUT chain ? (eg. SNMP-traps generated by the box are processes by the output-chain)
Did you do a textual compare of 2 configs ?? From a working site <> non-working site ? Any differences ?