Outgoing Ping not working

[xenon2008]

Hello together,

I currently have the problem on my OPNsense that all outgoing pings which are NOT to the local network do not get a reply.
My setup is as follows: FRITZ!Box (router) => WAN OPNsense | => LAN network.
I can ping everything, including the Fritzbox, but nothing beyond that.

Yesterday I restarted the OPNsense, and then pinging worked again. Today, one day later, nothing on the internet can be pinged again.
In the live view I can see that the request is passed through via NAT, but I cannot find any block in the live log, no matter what I try to ping on the internet.
tracert on the other hand apparently works.

Does anyone have an idea what could be causing this?
Unfortunately, I cannot say how long this has not been working anymore, but until recently it definitely still worked.

I have OPNsense 26.1.8_5 installed, and everything other like Web Surfing ... works fine.

Thanks & Kind Regards