Detected problem on the coordinates!

Hello,

Here is the next problem I detected:

When I do a /fill ; /setblock ; /summon on the place where I am located, it offers me the coordinates itself next to my location or further, but sometimes the command offers me the exact coordinates. It happens very often.

Here are some pictures below of the problem I encounter very often.

PS : I repost my last problem in English as you asked me