Aduh, memang common lah situation macam ni! Anak saya dulu 1+ tahun macam tu jugak, langsung reject nasi pastu mainly bf jer, I was so worried, tapi pediatrician cakap tu normal phase, especially if dia still aktif dan berkembang okay. A few of my mum friends pun kena phase ni, and most kids eventually keluar from it once mereka bosan or tiba-tiba interested balik. Since he's still getting nutrition dari breastmilk, it's not urgent-urgent, tapi better check with your doc just to make sure everything's progressing well and rule out any teething or sensory issues, sometimes gentle texture exploration helps too, mcm let him play dengan soft foods instead of forcing.