On your site A MPLS switch i can see the static route as below.
ip route 192.168.100.0 255.255.255.0 192.168.10.251
The next hope which is showing here is 192.168.10.251 (Not sure if this should be pointing to switch 192.168.10.254) which accroding to your diagram is Sonic Firewall. Firewall more likely wouldn't be allowing traceroute and hence that may be the reason your saying trace result as your seeing now.
How is the routing and firewall policy looking on the firewall? From firewall are you able to reach 192.168.100.x and 192.168.30.x network
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...