In the screenshot below, the tempo equation is too close to the gradual tempo mark that follows. There doesn’t seem to be a setting for this in Engraving Options, and I’d consider this colliding.
Except in very specific circumstances we don’t have any horizontal padding values for different items; only when they are positioned together as part of the same phase of processing. I agree that this is a bit tight, though it’s certainly not colliding. For the time being you’ll have to make a small adjustment in Engrave mode.