fps drop experienced at 18:20, happened again when watching replay.
checking more in depth what could have done that.
EDIT : after watching replay again.
First fps drop at 13:36, still playable.
log around this time :
23:45:28.76 SPEECHQUEUE::ENTRYQUEUE -- Deleting dead entry. Size 1
23:45:28.76 SPEECHQUEUE -- Deleting empty entryqueue. Size 1
23:45:48.77 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [bill_boards]
23:45:55.18 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [bill_boards]
23:46:01.04 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [hay_stack_l_01]
23:46:01.29 SPEECHQUEUE::ENTRYQUEUE -- Deleting dead entry. Size 1
23:46:01.29 SPEECHQUEUE -- Deleting empty entryqueue. Size 1
23:46:32.31 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [bill_boards]
23:46:33.61 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [tree_generic]
23:47:01.19 SPEECHQUEUE::ENTRYQUEUE -- Deleting dead entry. Size 3
23:47:01.19 SPEECHQUEUE::ENTRYQUEUE -- Deleting dead entry. Size 2
23:47:01.19 SPEECHQUEUE::ENTRYQUEUE -- Deleting dead entry. Size 1
23:47:01.19 SPEECHQUEUE -- Deleting empty entryqueue. Size 1
Second around 17 min, makes it unplayable.
23:53:35.53 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [bill_boards]
23:53:42.42 SnowCapOverride- can't get 'ObjectSnowCapLimit' variable in material [bill_boards]