Move object around cube’s corner without jittering using accelerometer - algorithm

Question

I can move object (star) around cube’s corner using accelerometer. Object move following the orbit (green circle). Control inverted, if I tilt right object go left and vise versa.
While spinning cube around corner object move perfect. But when I stop spinning cube, object on one of the cube’s edges, cause of inverted control start jittering.
For example if I try to stop object between red and blue planes, it begins jumping from one plane to another.
Code for object movement
new accelX = abi_MTD_GetFaceAccelX(object.plane);
new accelY = abi_MTD_GetFaceAccelY(object.plane);
object.angle -= accelX - accelY;
if (object.angle >= 90) {
object.plane = GetRightPlane(object.plane);
object.angle -= 90;
} else if (object.angle <= 0) {
object.plane= GetBottomPlane(object.plane);
object.angle = 90 + spaceship.angle;
}
MovePointAlongCircle(OUT object.posX, OUT object.posY, object.orbit, object.angle);
Find coordinate on plane
const OBJECT _ORBIT_CENTER = 260;
new objectOrbit = 150;
MovePointAlongCircle(&posX, &posY, objectOrbit, anglePhi) {
posX = OBJECT_ORBIT_CENTER - (objectOrbit * cos(anglePhi));
posY = OBJECT _ORBIT_CENTER - (objectOrbit * sin(anglePhi));
}
I can get accelerometer values individually on each plane or like the cube is a one thing.
Trigonometric functions like sin and cos use fixed point and look up table.
I've got atan function, which return angle [-45; 45].
Atan(x) {
return ((PI_4_FIXED * x >> FP) - ((x * (ABS(x) - 256) >> FP) * (62 + (17 * ABS(x) >> FP)) >> FP)) * RAD_2_DEG >> FP;
}