Impossible remove uploaded Thumbnail image for video

Hello, Community!
Please, help with issue regarding Thumbnail image for video block.

  1. Go to studio for some course → in unit click on Add new component and choose Video block
  2. In opened form (course-authoring MFE enabled) upload Thumbnail image (to make this field active transcripts should be added before)

As result : Thumbnail image is displayed but how to remove or change it? There’s no buttons/icons to do that

Thanks in advance!

Hello @Mariia_Ostrochreva what I observe in (master branch) is that in the thumbnail section a bit lower there is a trash can icon where you can delete and then replace the thumbnail. Here: