I think this line must be
allowedContent: 'div[data-responsive](!ckeditor-html5-video){text-align,float,margin-left,margin-right}; video[src,poster,controls,autoplay,width,controlslist,height,loop]{max-width,height};',
video list must contained controlslist, otherwise plugin can't parse this parameter from stored html, and always set it to "True"
https://github.com/bahriddin/ckeditor-html5-video/blob/15fc6b10c2d8031ffa45824eaeded4314c4a2a86/html5video/plugin.js#L15
I think this line must be
allowedContent: 'div[data-responsive](!ckeditor-html5-video){text-align,float,margin-left,margin-right}; video[src,poster,controls,autoplay,width,controlslist,height,loop]{max-width,height};',videolist must containedcontrolslist, otherwise plugin can't parse this parameter from stored html, and always set it to "True"