Problem: I have deleted several custom fields from Post Field Control, but they still appear in the list of filter options in Views Query Filters.

Solution: Clear the Views custom field cache in Toolset > Settings > Front-end Content.

Problem:

The issue here is that the user wanted to change their Woocommerce Add to Cart button color.

Solution:
This can be done by using the CSS below.
.woocommerce form.cart button.button {
background-color: #000;
}

To change the hover color you will need the following
.woocommerce form.cart button.button:hover {
background-color: #fe5252;
}

Problem: I am unable to set a long excerpt length in a Single Field block. The length seems to be limited to the number of words or characters in the excerpt.

Solution: Our developers are aware of this limitation and are working on a solution in a future release. For now, a workaround is required. Temporarily edit the previewed post and give it a very long excerpt, then you can edit the Single Field block's word count limit to use a longer excerpt length. Revert the post's excerpt after setting the length correctly, and the longer excerpt length setting will persist until you edit the View again.