Has anyone started the potty training process and then decided LO wasn't ready and went back to diapers?

We attempted potty training a few days ago (trained LO1 at the same age as LO2 is now), but after 2.5 days in underwear LO didn't use the potty once. She stayed dry at naps and bedtime but didn't use the potty at all...just the floor. DH and I agreed to go back to diapers and wait a few more months.

Has anyone else done this? How long did you wait between attempting to train and trying again a second time? She was showing signs of readiness but obviously she isn't ready quite yet!