SpaceX has lost contact with three of its Starlink satellites

On May 23rd, 2019, SpaceX launched the first batch of its Starlink constellation, a fleet of satellites that will fulfill Elon Musk's promise to provide broadband satellite-internet access to the entire planet. The deployment of these 60 satellites was the first in a series of six planned launches that would see around 720 satellites orbiting at an operational altitude of 550 km (340 mi).

source https://www.lifetechnology.com/blogs/life-technology-news-blog/spacex-has-lost-contact-with-three-of-its-starlink-satellites