Protocol 2048(IP) changed from 800(IP)

I have an RB750 with version 6.27 code with only a very simple bridge containing two ports. The bridge has two IP address filters that have been working for a week flawlessly then filters stopped showing a match. When I looked at the host connection table I noticed the IP protocol now shows an IP type 2048 instead of 800. When I did a packet capture on the router, the offset in the packets showed it as a type 800 as it should.

I removed the bridge configuration and re-created it with no change. It took a factory reset and re-configuration to get it to work again. Is this a bug or what?

800 is in hex and is equal to 2048 in decimal. Both are the same, just displayed differently.

Type Protocol
0x0800 Internet Protocol version 4 (IPv4)