PUBG Corp recently rolled out the 5.3 patch for PlayerUnknown's Battlegrounds which introduced plethora of issues with the most impacting one being the blood effects that mess with the visibility. This problem will not be solved before Friday, 20 December 2019.
PUBG's patch 5.3 introduced the new blood effects when characters get hit. The blood effects should have been the glorious highlight of the patch as they transferred from the point of impact to the nearby environment but as it turns out they are actually more of an issue, rather than a feature.
The reason for this is the reduced visibility the players have been suffering and worse feedback from the game which resulted in the shooters not being sure whether they hit the target or not.
It's safe to say players expected an immediate hotfix since the effects are crippling to the experience but this will not be the case. On 19 December 2019, PUBG Support posted an update on their Twitter, stating that they are aware of the issue and working on it but a fix will not come on the same day.
Furthermore, only "more information" was promised for the day after, 20 December 2019. This could mean players will get a hotfix after all but the wording is important here - PUBG Corp did not outright state they would solve the issue on that day.
It also appears that the blood effects are not the only problem PUBG players are facing now as many are reporting crashes and latency increase on European servers.
There are no updates on these two issues but PUBG Support Twitter did offer an answer for the invisible parachutes . It is pretty much the same one they gave about the blood effect feedback, meaning players will be notified on 20 December 2019 about the progress on fixing the issue.