Why aren’t my Marion berries sweet

Question

They are not sweet or very soft. And, some have a woody part on the berry.

Answer 1

This article gives you tips about growing conditions and care:
https://www.gardeningknowhow.com/edible/fruits/blackberries/what-are-marionberries.htm

Check all the requirements in this article and see if there isn't something that's missing in your plants' environment, soil, and water. If all conditions are good, you may want to contact your local extension service for more information.