Did the Seleucid Government Later Admit That Abolishing Their Ancestral Instructions Caused the Revolt?

Primary: 1 Maccabees 6:55–59 · Setting: reign of Antiochus V Eupator after Antiochus IV

What the ancient record says

After the uprising and warfare, Lysias advises the king and military leadership to make peace, proposing the people be allowed again to live according to their own instructions as formerly. The narrative attributes to Lysias the admission that the people became enraged because their instructions had been abolished, identifying the conflict from the government's side.

The uprising was not random rebellion; resistance is directly connected with suppression of ancestral instructions. It did not end perfectly: the proposal is accepted and an oath sworn, but after the king enters Mount Tsiyun and sees the fortifications' strength, 1 Maccabees says he breaks the oath and orders the surrounding wall torn down (read through v.62).

What we can and cannot prove

No surviving Seleucid transcript proves Lysias spoke every sentence exactly; 1 Maccabees attributes this admission to Lysias during peace negotiations. We do not upgrade a narrative quotation into a surviving government document.