BDs encoded at precisely 24fps - is this wrong?

[Mentasm]

I've noticed that a few of Optimum's recent and forthcoming BD releases are encoded at precisely 24fps, not 23.976fps like every other BD I own (incliding all of Optimum's older releases). When watching these discs through my BD-P1400 with 24Hz output to my Toshiba 42Z3030D with film stabilization set to standard (120Hz 5/5 pulldown mode) I see regular glitches in the video, almost like a frame skip. I have seen this problem before, when Samsung broke the 24Hz output on the BD-P1400 with an earlier firmware release.

As far as I'm aware, players with 24Hz modes actually send at 23.976, not exactly 24. Is this correct? If so, could the precise 24fps encoding of the video in conjunction with the player trying to send it at 23.976 be what's causing these visual 'hiccups'?