Vertices WON'T move along axis Okay, so I have this problem I can't seem to find anyone else who does. So I'm trying to move a loop of vertices on the Z axis (First pressing G, then Z) but the problem is that it only LOOKS like it's moving up, but when I rotate the camera it's moved in some odd direction instead. I've also tried inputting the amount I want in to move via the keyboard instead of with the mouse, with the same issue. I've tried this from every angle, to no avail. Any help is much appreciated.
As commented by @RobertGützkow, you have Snapping enabled:



That means your vertices will be snapped to the closest face while moving them. You can disable it altogether or hold CTRL while moving.