2.3.3->2.3.4 Upgrade on Alix fails to upgrade kernel?

[skywalker]

Hello,

I've still got two Alix firewalls here.
One already runs on:

2.3.4-RELEASE-p1 (i386) 
built on Fri Jul 14 14:53:03 CDT 2017 
FreeBSD 10.3-RELEASE-p19

I tried upgrading the second one yesterday from 2.3.3 and it came back up with this info:

2.3.4-RELEASE-p1 (i386) 
built on Fri Jul 14 14:53:03 CDT 2017 
FreeBSD 10.3-RELEASE-p17

So it looks like it failed to upgrade the kernel.
I remember I had seen something like "kernel locked, may not be upgraded" during install.
Unfortunately I have overwritten the last update log by hitting the update button again.
Is this a problem? If so, how could I finish this half completed update?

thanks!