Weird Yellow Checkpoints appearing ingame

Lately, some weird yellow checkpoint signs have been appearing to me in game with a beep. I've asked other players if they can see it too and it seems they can; not sure about enemies tho. When I go to the checkpoints nothing happens, neither I know how and why do they appear. I don't know if u guys know what am talking about but this forum wouldn't let me upload a picture larger than 19.5 KB!



EDIT: I uploaded the picture here
https://ibb.co/Wtx7Q69

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