I could only see the glittery shadows of both allies and opponents in a crucible match. There data didn't load either. The status was also the same in the reef and tower. I could see players who were on my fireteam though.
Here's a link to the crucible game. I play on PS4 with a wired 25mb/s connection.
https://www.bungie.net/en/Legend/PGCR?instanceId=5112748238&characterId=2305843009261246022
English
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Also, I couldn't see my health bar and I often died quicker than seemed appropriate in that match.