game crashes after a Replay

[Narhethi]

theres a replay that i wanna see but at the same time and place it always crashes unlike my other replays. thats what the crit error message i got

OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel Unknown processor @ 2397 MHz with 1023MB RAM
Video: Radeon X1650 Series (6652)

Assertion failed: Delta==Delta [File:.\UnPhysic.cpp] [Line: 1006]

History: APawn:hysWalking <- silver_cat 20_23.silver_cat0 Loc.X=12063.125000 Y=182287.000000 Z=-3571.380127 Acc.X0.000000 Y=0.000000 Z=0.000000 Vel.X=-1.#IND00 Y=-1.#IND00 Z=-1.#IND00 Delta.X=-1.#IND00 Y=-1.#IND00 Z=0.000000 <- APawn:erformPhysics <- AActor::Tick <- TickAllActors <- ULevel::Tick <- (NetMode=0) <- TickLevel <- UGameEngine::Tick <- UpdateWorld <- MainLoop

[EllieBelly]

Is it a replay recorded in C4 but played in C5?

[Narhethi]

nah record in c5