Crew sound replacement for 9.17.1 - sounds sometimes not played (ErrorCode 15)

[Aimdrol 1]

I've started updating my sound mod for 9.17 and followed the instructions from this thread: https://koreanrandom.com/forum/topic/37612-проект-wwise-для-09171. 

My problem is that sometimes certain sound events (like vo_enemy_hp_damaged_by_projectile_by_player) do not work properly at certain times: I've watched the same replay file multiple times. Sometimes a sound event like vo_enemy_hp_damaged_by_projectile_by_player is played fine and sometimes it's not and throws an ErrorCode 15 error in python.log. I've not yet noticed a pattern behind the sometimes failing sound events. 

In addition to that it's hard to understand why certain sounds are failing when I've only have an ID like 2979380528 from python.log. There was a mapping table with these IDs and the ones used in the Wwise projekt (like vo_enemy_hp_damaged_by_projectile_by_player) for an older version. Is there something like this as well for 9.17.1? Currently I can only guess which sounds are failing.