Compatibility with 2fa and color variation from dropdown menu

First thank you for this awesome plugin.

I use this plugin mainly to change the main image when choosing a different variant from the (color variation) -dropdown menu.
But
I have the following issues:

1) When there is no “size variation”, just a “color variation” of the product, changing the main image when choosing a different color does NOT work like on other products which have both color and size variations.

2) changing the main image -when choosing different color variation- stops working when the plugin Two Factor Authentication (https://www.ads-software.com/plugins/two-factor-authentication/) is active, I’m not a coder and I don’t understand how plugin conflicts work! is it because both plugins use some same names for webhooks or something else, I don’t know! the 2-fa plugin is used for login, why there should be any conflict with this one?

thanks for understanding!