Saddle movement

What would cause the saddle to move? I noticed today the saddle on my Collings UC 1 had moved towards the A string. Thank you

Did you restring it recently? It may have moved before the strings were brought up to tension.

Is there an under-saddle pickup? Might not have been seated completely and the saddle shifted as it settled.

A lot of exuberant down-stroke only strums? Not sure that would do anything.

Can't think of any other things that would cause it. But others may have some ideas.

Thank you for your response. Answers in order of your questions.
No. I was planning on changing the strings.
No.
No.
Today was the first time I noticed it.

"Today was the first time I noticed it"

Perhaps it was always like that.

John Colter