Slider not working in backend after update to 6.7.7

<div class="wp-block-greenshift-blocks-swiper gs-swiper gspb_slider-id-gsbp-221770b1-e050" style="position:relative"><div class="gs-swiper-init" data-slidesperview="1" data-spacebetween="10" data-spacebetweenmd="10" data-spacebetweensm="10" data-spacebetweenxs="10" data-speed="800" data-loop="true" data-vertical="false" data-verticalheight="500px" data-autoheight="false" data-grabcursor="true" data-freemode="false" data-centered="false" data-autoplay="true" data-autodelay="4000" data-effect="regular" data-coverflowshadow="false"><div class="swiper"><div class="swiper-wrapper"><!-- wp:greenshift-blocks/swipe {"imageurl":"https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons-schwarz.jpg","imageid":276,"focalPoint":{"x":0.48,"y":0.42},"bgContain":false} -->
<div class="swiper-slide"><div class="wp-block-greenshift-blocks-swipe swiper-slide-inner" style="background-image:url(https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons-schwarz.jpg);background-size:cover;background-position:48% 42%;display:flex;box-sizing:border-box;background-repeat:no-repeat"><div class="slider-overlaybg" style="opacity:0.5;top:0;left:0;right:0;bottom:0;position:absolute"></div><div style="z-index:2;position:relative"><!-- wp:paragraph {"align":"center","placeholder":"Add content here or replace by custom block","fontSize":"medium"} -->
<p class="has-text-align-center has-medium-font-size"></p>
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<!-- /wp:greenshift-blocks/swipe -->

<!-- wp:greenshift-blocks/swipe {"imageurl":"https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons-perebo1.jpg","imageid":277,"focalPoint":{"x":0.55,"y":0.2}} -->
<div class="swiper-slide"><div class="wp-block-greenshift-blocks-swipe swiper-slide-inner" style="background-image:url(https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons-perebo1.jpg);background-size:cover;background-position:55% 20%;display:flex;box-sizing:border-box;background-repeat:no-repeat"><div class="slider-overlaybg" style="opacity:0.5;top:0;left:0;right:0;bottom:0;position:absolute"></div><div style="z-index:2;position:relative"><!-- wp:paragraph {"align":"center","placeholder":"Add content here or replace by custom block","fontSize":"medium"} -->
<p class="has-text-align-center has-medium-font-size"></p>
<!-- /wp:paragraph --></div></div></div>
<!-- /wp:greenshift-blocks/swipe -->

<!-- wp:greenshift-blocks/swipe {"imageurl":"https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons1.jpg","imageid":278,"focalPoint":{"x":0.53,"y":0.3}} -->
<div class="swiper-slide"><div class="wp-block-greenshift-blocks-swipe swiper-slide-inner" style="background-image:url(https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons1.jpg);background-size:cover;background-position:53% 30%;display:flex;box-sizing:border-box;background-repeat:no-repeat"><div class="slider-overlaybg" style="opacity:0.5;top:0;left:0;right:0;bottom:0;position:absolute"></div><div style="z-index:2;position:relative"><!-- wp:paragraph {"align":"center","placeholder":"Add content here or replace by custom block","fontSize":"medium"} -->
<p class="has-text-align-center has-medium-font-size"></p>
<!-- /wp:paragraph --></div></div></div>
<!-- /wp:greenshift-blocks/swipe -->

<!-- wp:greenshift-blocks/swipe {"imageurl":"https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons-bridge1.jpg","imageid":275,"focalPoint":{"x":0.45,"y":0.52}} -->
<div class="swiper-slide"><div class="wp-block-greenshift-blocks-swipe swiper-slide-inner" style="background-image:url(https://en-perebo.der-spanier.de/wp-content/uploads/2013/04/pe-pontons-bridge1.jpg);background-size:cover;background-position:45% 52%;display:flex;box-sizing:border-box;background-repeat:no-repeat"><div class="slider-overlaybg" style="opacity:0.5;top:0;left:0;right:0;bottom:0;position:absolute"></div><div style="z-index:2;position:relative"><!-- wp:paragraph {"align":"center","placeholder":"Add content here or replace by custom block","fontSize":"medium"} -->
<p class="has-text-align-center has-medium-font-size"></p>
<!-- /wp:paragraph --></div></div></div>
<!-- /wp:greenshift-blocks/swipe --></div></div><div class="swiper-pagination"></div><div class="swiper-button-prev"></div><div class="swiper-button-next"></div><div class="swiper-scrollbar"></div></div></div>