Sudden crate soiling

Hi guys,

My 5mo British bulldog puppy was previously crate trained, sleeping through the night from about 3 months with no accidents. All of a sudden he’s soiling 💩 every single night without fail.

I’ve tried putting him to bed later but it hasn’t helped. Vet check was all good and nothing that would be causing it.

There have been 0 changes to his diet, 0 environmental changes. We did go away on holiday for a few days but took him with us and he wasn’t alone any more than usual but could it be stress from the holiday? He was fine and didn’t soil for a few nights after we returned, then started and hasn’t stopped.

How do I troubleshoot this? Do I go back to getting up hourly through the night and just start from scratch with crate training? Why is this happening 😭

Help!! 💩