Apex Legends hit registration problems have surfaced since the launch of Season 5. Hit registration problems are a big deal in any FPS games, but complaints are also common. Oftentimes players will miss and blame it on the game, but that is nothing compared to the volume of complaints Apex Legends has received for the issues.
Hit registration is the game giving credit in the form of damage when you successfully hit an enemy with a weapon. It's a major problem for gameplay when it is lacking because it will make the game more difficult to play by requiring better aim or even simple luck to do damage to enemies. It is a very frustrating problem for players who often hear their bullets hit their enemy, but no damage markers appear. This is probably the reason that so many players took up arms on social media asking for answers.
The launch of Season 5 brought with it quite a few bugs and glitches, but most of them were resolved on launch day, May 12. Several days have now passed with no clear end in sight for hit registration problems which suggests it won't be an easy fix.
Hit registration problems are a high priority for developers and it is only a matter of time before they get fixed. Considering the fact that the season was only delayed for one week, a rocky start is to be expected.