Onions & garlic problem

Nothings wrong    All the food in the set/clove has gone into growing leaf, and in a month's time, with all that sunshine, (rain or watering if its dry) and warmth, the bulbs will start to bulk up.  Onions are magic - throughout May, take a photo of the onion bed once a week from the beginning of the month and you'll see visible changes.  Overwintered onions are usually ready from about mid-June - early July, and garlic about July-ish 

haven't grown at all?...did you plant them with all those lovely roots and leaves on then?
They don't tend to start fattening up till much later in the year, just bung them back in and that's it

Fantastic  I have some exactly the same, planted last year, became swallowed up by weeds (neglected  )
I transplanted them in November ish & after the hard winter the entire "brown onion" walnut size,  had rotted, but still lush greenery exactly like yours Ma Lowe.

I'm glad I decided to leave them in....best news I've had all day...except that it's friday & the weekend is going to be shorts