Meraki MX85 with Cisco 3650 Switch -- Cannot ping switch SVIs.

[waalarco]

We're migrating our Layer3 Nets / SVIs off of the Cisco 3650 switches to the Meraki MX85 at our Branches. The MX is able to provide DHCP, Layer3 Interface .1 address works and the MX is the default gateway. The problem is we cannot get to the Cisco 3650 anymore - for Mgmt. We cannot ping the Cisco 3650 SVIs - its like it becomes a brick.

MX85 port 5 is a trunk to the Cisco 3650.

We noticed the Meraki APs connected to the Cisco 3650s are also not working and cannot ping the MX default gateway.

Packet capture on the MX shows ICMP requests are coming to the MX but is not replying to the switch.

Any compatibility issues between Cisco 3650s and MX85s?

[ammahend]

There is no compatibility issue, make sure your trunk is configure right, vlans are allowed, icmp is not denied on MX, give sometime for ARP to update.

Also provide a network topology diagram. 
additionally post on Meraki community as well.