m8 its the same problem as in chapter 9 - just set ALL video settings to minimum and u will be surprised.
I dont know how it is connected.
This problem will return to you in chapters 17-18 one more time ( you will fall in textures in such scene with high video settings.
As for me, this game cries for patch....
No action button appear ? turn video settings to minimum
Pushing action button does no effect? turn video settings to minimum
You keep failing into the textures in some cases? turn video settings to minimum
You have random sudden deaths in chapter 19 with no reason? turn video settings to minimum
etc etc etc
And now add problems with bots, autosave fails, ratio seals not usable at all....
Good game, crappy port =/