Yes, this the same for me. Every time I do a render of my 400 frame sequence it misses 181 and 182.
Or several times it will crash Unreal Editor all together with me submitting a crash report.
If I renumber the sequence and look at the playback in After Effects or Nuke there isn’t any stuttering or juddering as if the missing frames were needed.
I’m using Alembic caches out of Maya, set to skeletal Meshes on import. At first I thought it was a miss match of FPS 24 or 25 between Maya and the sequencer but I double/triple checked when it last missed frames and everything is set a 25.