If your toe protectors are the thick silicone ones, they're too thick.
You should try the thinner [Bunheads fabric jelly tips] (https://www.discountdance.com/dancewear/style_BH1050.html?TopCat=ACC&cn1=accessories&rfilter=Category%23Accessories%3ASubCategory%23Accessories%21Pointe+Shoe+Accessories%3A%3A%3A%3A%3A&SortOrder=N&NewSortOrder=N] or it's cheaper alternative.