文学 is breaking my Phase 2 SRS efficiency

just hit hour 342 of active immersion and my daily SRS stats are ruined. i keep mapping 文学 to other -gaku words during my 4-second review intervals. it is a major bottleneck. step 1 isolate the kanji. step 2 run a 50-rep forced recall. if you dont debug these visual collisions immediately your daily retention rate drops below the optimal 85% threshold. tracking this error rate is exhausting.