Yes, specifically a colossal fuckup in attempting to exfiltrate enriched uranium.

It's Official: US Boots-On-Ground Deep Inside Iran Amidst Another Day of Humiliating Losses

The geolocated wreckage of the C-130s which were apparently using a local “agricultural airstrip” (32.223369, 51.897678) just happens to be right over a mountain, about 35km away, from Isfahan’s nuclear facility, where Iran’s ‘near-weapons grade’ enriched uranium is alleged to be stored.

In an article just last month, [Director General of the International Atomic Energy Agency] Rafael Grossi stated the following:

Almost half of ‌Iran's uranium enriched to up to 60% purity, a short step from weapons-grade, was stored in a tunnel complex at Isfahan and is probably still there, U.N. nuclear watchdog chief Rafael Grossi said on Monday.