The most likely reason is due to Pokemon Go’s “Proximity Rules”, more information at the link below…
Ignoring what the process states in certain places, you are nominating a “Wayspot” which was accepted in to the Wayfarer Database. Each game including Pokemon Go have there own rules to determine which will be used and what they will be used as.
If you would like us to confirm please supply the Title and Location (Long / Lat works best).