The Labor department’s Voluntary Fiduciary Correction Program, at its § 7.6(b), suggests, indirectly, an opportunity to correct a fiduciary’s breach in paying, or allowing to be paid, from plan assets an expense that was not a proper plan-administration expense.
While there are some further conditions and details, the correction is mostly about restoration or disgorgement, whichever is the greater recovery for the plan.
https://www.govinfo.gov/content/pkg/FR-2025-01-15/pdf/2025-00327.pdf
A VFCP no-action letter affords some relief from some ERISA title I civil investigation and civil penalties.
I don’t know what might obtain tax law relief.
This is not advice to anyone.