Starting with 1/4" round and forging the point over the edge of the anvil I noticed the tips are cracked or split. Is it to hot comfort of the gas forge or could it be from working to cold?

Cracking is usually working too cold.  Remember that the smaller the crossection, the faster it both heats up and cools down.  You also may have forged in a cold shut when you forged down the taper.  One good trick on these small diameter tapers is to leave a small "bulb" at the very end of your taper until the final steps of the taper.  It is easier to demonstrate than describe

I will get a cold shut from the cut-off on quarter inch bar if I don't file it flat before forming the taper. Or leave a lump at the end like Latticino said, which I can then just trim or file off later. For this reason, I prefer to cut 1/4" bar with a hacksaw rather than a chisel or hot cut. It's just as fast, if not faster since I don't have to heat it first. 1/4" takes no time at all to cut through with a hack saw.

The cold shut is usually pretty obvious right at the beginning though - so if you don't notice anything until later on, then it's probably from working too cold. 1/4" cools really fast.

if you are going to work the end of the bar, then cut it hot.  A couple of end on hits and it will be flat, or a couple hits and it can taper.  If you want it cut cold, use a pair of big wire cutters, or use a chisel to score the bar and bend to break it.

I have a pair of bolt cutters for cutting stock cold, up to 3/8" rnd. I have a small pair for up to 5/16" but the large pair makes a cleaner cut. After taking a heat, before forging I run a hot rasp across the end to deburr. If I'm going to be using the stock cold I deburr it on the bench grinder.

Frosty The Lucky.