Standing Still but Still Cant Play?

After the latest patch, Pokémon are disappearing and the nearby list is constantly going blank. I understand that this happens when you are moving to fast (I.e. Driving in a car) but it happens to my friends and I when we are standing still or walking. It happens randomly and lasts for full minutes. Its a major inconvenience. PLEASE CORRECT ASAP. My GPS is not the issue. This occurs constantly for many users that I know.

Kossshi22 about Pokémon GO, v1.29.1