The function Play to(seconds) does not functions as it's tooltip implies. "Play the sequence from the current time, to the specified time in seconds". The function instead snaps to the specified time and stays there.
This was reported and tested in 4.22.3 (CL-7053642). This was reproduced in 4.23 (CL-8115738) and Main 4.24 (CL-8211406)
Results: It snaps to the specified second and stops.
Expected: For it to play from the beginning to that second, as the tooltip mentions.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-79262 in the post.