When FotoWeb is transcoding videos, different symbols are used to indicate the status of the transcoding job.
This symbol indicates that FotoWeb has queued the asset for transcoding. With FotoWeb Enterprise you can adjust the transcoder settings to control the speed of transcoding.
Transcoding in progress
The asset is currently being transcoded. Once the process completes, FotoWeb will replace the thumbnail with a proper video thumbnail.
The video file failed to transcode. You may try to restart transcoding to see if that solves the issue.