The following issues can be resolved by downloading the day one patch before starting.

Resolved an issue where the player will become trapped by an invisible wall over the stairs after fast travelling to the Soviet Facility basecamp Resolved an issue where the player may encounter an invisible wall inside the interior of the Soviet Copper Mill when returning after completing the game Resolved an issue where moveable objects in the Abandoned Mines may act erratic when coming into contact with the player Resolved an issue where the player will be unable to use the climbing axe to melee attack NPCs after the flamethrower battle in Geothermal Valley, until meeting up with Sophia again Resolved an issue where, rarely, an NPC will not spawn and prevent the fight in the Gulag prison from progressing Resolved an issue where, rarely, the player will encounter an invisible wall where the gate was after the first combat encounter in Path of the Deathless Changed experience point distribution in the early portion of the game. And additional bug fixes, visual polish, and optimizations

The following issues can be prevented but not solved by downloading the day one patch before starting:

Prevented an issue where purchasing the Enhancement Tool before receiving the other two crafting tools, and then dying before hitting a checkpoint, can cause the tool to be removed from the player's inventory Prevented an issue where the well cover in the Abandoned Mines may be present after returning in post-game, blocking 100% completion Prevented an issue where user is unable to craft grenade arrows if they break the barrier in the Acropolis using the grenade launcher Prevented an issue where, occasionally, quest givers will be misplaced in the environment when returning with a completed mission