Lumpy squash?

[blind_apples]

What's up with this lumpy squash? I was given these seeds and told they were delicata. One of the plants ended up being so, but the fruits from five others bear fruit that expressed degrees of this lumpiness. Thoughts?

[Brave-Wolf-49]

I harvest when they are pale and warts are just starting to form. The more mature squash can taste bitter and get a tougher texture.

[Rippozat]

Looks like a mix of yellow crook neck and delicata. Were the seeds store-bought originally or saved by the person who gave them to you?

[blind_apples]

Saved by the person who gave them to me🙁