How did the pennsylvania mutiny highlight congress’s weakness under the articles of confederation?

The Pennsylvania Mutiny highlighted the weakness of Congress under the Articles of Confederation because Congress was unable to help soldiers who wanted payment for service.

Explanation:

The Pennsylvania Mutiny of 1783 was an anti-government rebellion of about 400 troops from the Continental Army in Philadelphia, in June 1783. The rebellion, and the rejection by the Pennsylvania government's "Executive Council of Pennsylvania" to stop it, ultimately resulted in Congress leaving Philadelphia and the creation of a federal district to serve as the national capital. The entire system of US capitals became affected by the aftermath of that uprising.

The inability of the federal government to resolve the mutiny, coupled with similar previous episodes and the weak economic situation of the government led the representatives of the states to arrange a revision of the Articles of the Confederation.