Hello,
Thank you for including the solution, in case there are other users who have trouble while using the Bridge theme.
as for the questions about auctions..
1. Our integration for auctions may be updated in the future and moved to a paid supported integration. Otherwise, it is free, as is. The “sealed bid” must be a new feature in WooCommerce Simple Auctions, as I have not seen that before. Therefore, it will not be in our integration for the front end forms if it is new. If you find the id for the field, it can be added to the front end forms using a checkbox form code, similar to how the other fields were added if you look through the free simple auctions integration plugin code.

2. Forward? So, normal auctions? Our code says, “Normal”. Is there a setting in your WooCommerce Simple Auctions plugin settings to only allow Reverse auction type?

Hello,
I am taking a look at the code , as there is a filter, but it is a little confusing to change it with the way it is written. If needed I will check with our lead developer so he can give me a bit of assistance if I cannot figure it out.
The filer is wcv_simple_auctions_auction_type and (I am not sure of your php knowledge) if you want to take a look or take a crack at it, you can see the function here:
plugins/wc-vendors-pro-simple-auctions/class-wcv-simple-auctions.php
line 254

// Type of Auction
		WCVendors_Pro_Form_Helper::select( apply_filters( 'wcv_simple_auctions_auction_type', array(
                'post_id'                       => $post_id,
                'id'                            => '_auction_type',
                'class'                         => 'select2',
                'label'                         => __( 'Auction Type', 'wc_simple_auctions' ),
                'desc_tip'                      => 'true',
                'description'                   => sprintf( __( 'Type of Auction - Normal prefers high bidders, reverse prefers low bids to win.', 'wcvendors-pro-simple-auctions' ) ),                                             
                'wrapper_start'                 => '',
                'wrapper_end'                   => '',
                'options'                       => array( 'normal' => __('Normal', 'wc_simple_auctions'), 'reverse'=> __('Reverse', 'wc_simple_auctions') )
                ) )
        );