The BULLA contract bug lasted for 12 minutes with valid fluctuations, and the up-and-down frequency was too slow.
It took more than 30 seconds for one wave, and since I was just watching at the beginning, I didn't notice the problem, which led to about ten losses.
In the end, I only made a few tens of thousands.
Last time I made over a million was because the frequency was fast, making tens of thousands in just 10 seconds. I was making money like crazy.