Activity of twins but not the twins.

[VTvoid08]

I have a screenshot of the activity demonstrating the ability of the twins, however it was a demon. this has happened to me multiple times now and it is getting quite irritating.

[shae]

any ghost can replicate the "twin curve" on the activity board with well-timed interactions, it's not a sure-fire tell for twins. twins are more likely to do it, but it's definitely not specific to them.

not a bug.

[Emurinus]

There is no such thing as a twin curve. Any ghost can pull it off.

[Viila]

The "twin curve" simply means that two interactions happened within short time of each others. Any ghost can do that. It is more typical of Twins, since their ability almost always generates that sort of curve on the monitor due to doing two interactions at the same time, whereas other ghosts need to do two interactions and that is much rarer so you see it much less often with other ghosts. But seeing the twin curve is not evidence or proof. It is an indication that the ghost may be Twins, but it can be something else. It's a hint, verify it some other way (evidence, hunt speeds, etc.)