dryhopped sediment after bottling

[ICR]

hi, after 14 days of fermentation i just bottled a dry hopped neipa from primary bucket, and the last bottles that had much of the hops at the bottom, about 6 pieces, has something like a restarted (?) fermentation at the top of the bottles. is it because the priming sugar reacted with the yeast and the hops? im sure its not infection as only the last ones has this. im afraid of a bottle bombs, should i or its normal and will settle down by time and in the cold later? attached the pics of these bottles - the rest seems totally normal
thanks!