The National Science Foundation has been returning fellowship applications with minimal explanation, leaving early‑career researchers uncertain about review timelines and funding prospects. Applicants and university research offices report confusion about eligibility and procedural changes that could delay critical early‑career support. The move raises operational concerns for research universities that depend on predictable fellowship cycles to recruit and retain junior scholars. Institutional research offices are now seeking clearer guidance from NSF on resubmission pathways, appeals and timelines to prevent disruptions in hiring and grant planning.