Has Bostik changed the formula of Blu-Tack?

I'm aware Blu-Tack is made in the UK, but it's been an Australian icon long since I was born which is why I'm asking here.

I remember it being stretchy and more elastic, like when you stretched it, it would snap back on itself. Also, when you removed it from the wall it would come off in one piece and you could reuse it.

Now it seems to just melt after a few months, turns to some form of semi hard goo, and is impossible to get off the wall. There's also no stretch, it just kind of snaps and it can't even hold a A4 piece of paper on the wall without falling off in a few weeks.

Does anyone know the story here?