On trying to stack components e.g. fuel tanks, for some reason they now refuse to snap onto the ends of each other and instead insist on being placed at 90°
to each other and without any regard to the clearly labelled snap point in the end of the tank and, on being manually rotated, simply clip through each other, meaning rockets always end up in a zigzag shape. This applies to all fuel tanks, engines (inc. boosters) and any other vertical-snapping-enabled part such as nose cones, adaptors and docking ports; though some items like command units, monoprop tanks and xenon canisters are unaffected. I am new to the game, so it is likely that I just pressed a button (the problem persists after a restart and even a total reset and is not save-specific, and looking in the controls list provides no answers) to change modes-if I did, how do I revert this?
Using v1.1.3 on win8.1 64x with an i5-4460 3.2GHZ and 16gb RAM. This picture shows my attempts at adding a fuel tank on top of one bolted onto one of my existing rockets from when attaching worked.