Disappearing Ether

X86 RouterOS 2.9.51 with integrated gigE and RB44G.

After doing a restore from a backup a couple of weeks ago I noticed ether4 was no longer in the interface list.
I needed to do another restore this morning from friday’s backup and now ether3 has disappeared.
Has anyone else seen this issue?

-Louis

I’ve seen this with the rb500s.
I recall it happened when they were running 3.14, we upgraded and also upgraded the firmware, rebooted, the ether showed up again.

I submitted the info to support. They replied that they knew about the issue but recommended I do a reset-configuration and restore from an export. What a hassle! MT backup/restore system has always been a failure and should be redone.

-Louis