Hexagram 21, Shì Kè (Biting Through): Line 3
噬嗑卦六三 · 火雷噬嗑 · 中文版
六三：噬腊肉，遇毒；小吝，无咎。
The line (Legge)
The third SIX, divided, shows one gnawing dried flesh, and meeting with what is disagreeable. There will be occasion for some small regret, but no (great) error.
Small Image commentary
'He meets with what is disagreeable and hurtful:' - his position is not the proper one for him.
象曰：遇毒，位不当也。
In plain words
Biting into dried meat and meeting poison: a little regret, but no fault. The third line is weak, neither central nor correct; a hard task is too much for it, and it draws resentment. The Small Image says this is because its position is improper.
Applying it to your situation
If you have taken on a thorny job and drawn some displeasure, this line suggests small setbacks are to be expected and will not become a big problem. What in that displeasure is understandable?
Position
A broken (yin) line in the third place, which is a yang (odd) place, so it is not in its proper place. Its partner is line 6; one is yin and the other yang, so they respond to each other.
If this line moves
With this line moving alone, Shì Kè changes into Hexagram 30 Lí (The Clinging Fire). The Jiaoshi Yilin verse for this change (Chinese): 焦氏易林·噬嗑之离.
The hexagram
Hexagram 21 Shì Kè (Biting Through). The Judgment: Shi He indicates successful progress (in the condition of things which it supposes). It will be advantageous to use legal constraints.
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English text: James Legge, The Yi King (Sacred Books of the East, vol. 16, 1882), public domain, as transcribed by the Chinese Text Project. Chinese: the received text. Offered for study and reflection, not as prediction. Plain-English readings and position notes by this site.