Prime Video app frequently goes on short 2 second loop after using transport controls. Pausing it for a minute and then resuming seems to break the cycle, but it is very annoying when trying to find a place in a stream. Discourages use.
Can you please clarify the issue you are experiencing? What is the "transport" you are referring to? Does this issue only occur on the Prime Video channel or does it happen across all channels you are watching?
With more information we will be able to assist you further.