Why did TikTok totally halt my post?

Here is a screenshot from my post today. A 1:15 video with a 33% watch through rate is extremely high. Every indicator is extremely strong, yet it suddenly fell off a cliff and didn’t come back after around the 2 hour mark. I post consistently every day so I am unsure as to why the algorithm would be “punishing” me.

Does anyone know how a video with metrics THIS strong can fall off a cliff like this? For reference, i have had a video of the same genre that was only 58 seconds long hit 5 million views while it had a completion rate of 7% just last week. There seems to be no rhyme or reason and it is discouraging to see such strong metrics go to waste.