Why is my dog messing through the night?

[Sstorm]

Little dog, crate/ house trained for well over a year now. She's 17 months old.

Recently I've been getting up to poo all in her bed/ crate in the morning. Not every morning- say 5 times out of 7.
Its not runny/ diarrhea so its not an uncontrollable accident. She's not got an upset tummy, her diet hasn't changed, she is let out before bed as normal, nothing has changed in the household.. I don't get it!

How do i handle this??

My dog is a morning pooper (outside though!). And I pushed back her meal from 4 to 5pm so we don’t feel rushed to take her out for a poop. She does her morning poo at around 8:20am when we do the school run. Sometimes she does a poo in afternoon. She has never needed to poo at night (thankfully!). Have you tried pushing her last meal back?

Vets asap.

Move back last meal to 6pm.
Take for a quick walk around the block at bedtime - lots of (most?) dogs save their poos for when they are out of their home/garden.