Q.Tomato Plants Growing Weird
Some of the tomato plants are ending up like the attached pictures, different plants. Any idea what would cause this?

Certified GKH Gardening Expert
This will be the classic symptoms of infection from overwatering.
At this point, it will be faster and easier to start over with new soil, fresh plants, and to correct watering habits.
You can attempt to recover these, but they will not yield much, and will take several weeks to recover after treatment. In that time, you can have new plants grown and almost ready to produce, so replanting will be the best option.
Make sure that the soil is light enough to allow all extra moisture to leave freely through your drain holes. Make sure to, only, water once the soil has dried completely down to at least 4 inches in that container.
Be sure to disinfect those containers with the antimicrobial of your choice prior to replanting.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/containers/how-to-clean-containers.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-guide.htm