Cookiebot blocks 'load' event handlers when declined

Actual behavior: 

When opening a page the cookie banner is displayed. When the cookies are accepted everything works as intended. When the only necessary cookies are accepted the lazy loading of pictures doesnt work anymore. After reloading the page everything works as intended. Also, everything works as intended when the necessary cookies are accepted fast. 

Expected behavior: 

Even when only the necessary cookies are accepted the lazy loading of images still works. 

The lazy loading is implemented in a Vue.js component. When a image is intersecting the viewport a method is triggered that adds a event handler for the 'load' event of the image that just sets a property which controls if a loading spinner is displayed. 

This is the method. So nothing special. 

loadImage() {
            const image = this.$el.querySelector('img');

            if (image) {
                image.addEventListener('load', () => {
                    this.isLoaded = true;
                });
                image.addEventListener('error', () => {
                    this.hasError = true;
                });
                this.isIntersected = true;
            }
        },

It seems that the load event handler never gets triggered when only the necessary cookies are accepted. Anyone ever had this kind of problem and has a solution?