08-06-2019 08:31 AM - edited 08-06-2019 08:41 AM
That's OK... These things happen.
It sounds like you have the camera set in Hybrid Auto Mode. This takes a short video clip with every still image you shoot. The resulting stills and videos can later be played back as a Digest Movie combining the files.
Check out page 32 of the user manual for more details.