I noticed some rotations in gacha from type +1 +2 (white or blue blink) or +3 (white blink only after 2-5 rolls). This even applies on GHQ, when you can find only N cards (the different one follow the sequence). No blink means usually +1, starting from the last position where the rarest card was found.

The random fact is when offers more than one card of the same type (specially with red blink) or character stucks on the same position, changing direction or rotation after that (once i found 2 SR and 1 R on the same place, then rotation goes on).

I identified three different kind of rotations (could be more), i.e +1 +1 +2 -3 or -2 -2 +1 -1.

This is just a theory, i need some feedback from other users if they got rotations like mine.

Note: i'm not in the discuss if data is preloaded on client or server side, Yoshi already did a good job explaining how client works. What i'm discussing this time is about permutation over the position of the results.

And about R or event gacha, i don't know if these rotations works (card reveal or no use)