Can Someone Explain What Happened Here?

[I_R_HasGud]

So I recently was speedrunning 70 star, and when I got to THI the run died because the Pirhana plant star wouldn't spawn. This is the link to the video showcasing it ---->WHERE IS IT!?!?!

I don't know if this is a good place to ask this, but I want to know what I can do to avoid this in future runs.

 

[ColbyRayz!]

it looks like you kicked a plant and it instantly killed it which does not happen in vanilla, turn off all mods except speedrun timer

 

[I_R_HasGud]

it looks like you kicked a plant and it instantly killed it which does not happen in vanilla, turn off all mods except speedrun timer

Thanks! I'm pretty sure the only other mod I had on was prevent single player pause, although I guess that might change something. You would definately know better