The EHFCor term is also anomalous, and the temperature oscillations seem a bit larger than I'd expect.
There may be something else in the earlier output; we can only guess at what's been done before the dynamics command, although message the message "BLOCK 1 # OF DEGREES OF FREEDOM = 226" suggests the the BLOCK facility is being used. The BLOCK command is very powerful, and consequently very dangerous and likely to cause unexpected results if not set up properly.
I don't use BLOCK, so I may not be able to give much advice on that.