Recent nemesis spawning changes. Am i having bad luck?

[mi023]

In v1.2.1.6,

@Zantai

Nemesis boss spawn kill count now scales with difficulty, with Ultimate retaining current settings and additional kills being required on Normal and Elite.

For Kaisan, the spawning kill require is 280-855 on Normal, 240-735 on Elite and 160-490 on Ultimate.

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Before v1.2.1.5, this require is 160-490 on all difficulty.

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There has been no change in the data on Ultimate.
But I heard from others that it is more difficult to spawn Nemesis than before. I’m not sure if there are any hidden changes that I didn’t notice.