There are several posts all over the forum with the same issue. In most cases it was never resolved.
I'm trying to do something as basic as having an element rotating indefinitely over its z axis SMOOTHLY.
Whatever I do it appears to be impossible, there's always a jerk at some point. It also appears strange that simply stating loop 360deg, linearly should do the trick yet it plays only once. The only solution I found to make it loop is to add a second step for 0.1deg and have the first step as 359.9deg but this always causes a jerk.
I've also tried having a large number of degrees specified for the rotation yet it appears to be limited to a maximum of 2000deg.
Is there a real solution to this apparently simple problem?