Why am I able to view multiple pictures by toggling left and right, and some pictures I need to press the 'back' button on my browser and open the next one. As an example in the Motor Yachts section, on page one, the Topic "3270 project" I have to page back, and in the Topic "Engine Corrosion Eradication" on page 2 I can toggle left or right through the series of pictures.
Is it my computer (though I have tried this on two browsers, Edge and Firefox) or the way in which the poster uploads the pictures?