Anyone else's baby not doing great with lumps?

My son just turned 1 and he has good and bad days. I often feel like I have to encourage him to eat by distraction he's never over enthusiastic about eating. But he's down to one bottle before bed and milk and water in his sippy so needs the food.

He will eat toast, peas, sweet corn, scrambled egg, baby puffs, etc.

But sometimes he does well with his purées (I mainly homemake them) but today he was spitting it out. He had spaghetti bolognese which he normally loves but was spitting it out. I then waited nearly an hour and tried him again but he spat it out so I blended it and he continued to spit it out. He also spat his yogurts out which he normally loves. I then put some cornbeef and grated cheese on his tray and he ate the lot.

Do you think this is due to teething? I'm just worried he's not eating enough lumps.