Pinball bumpers use angle for strength in udmf
Ideally it'd be one of those auto-filling things that uzb does for rings and such, so that it's by default there, but older maps that leave the field blank still use the angle, since this isn't 2.2.11 anymore.
A snippet of p_map.c's P_DoSpring()
}
if (spring->spawnpoint && spring->spawnpoint->angle > 0)
vertispeed = (spring->spawnpoint->angle<<(FRACBITS-1))/5;
vertispeed = FixedMul(vertispeed, FixedMul(object->scale, spring->scale));
if (object->player)
{
It's probably a simple fix like mobjscale was... but I'd rather have someone like Mascara do it since they know what they're doing.