Xcas/Giac vs HP Prime: LambertW

[Lode]

Hi,

If I got it correctly, HP Prime runs Xcas/Giac as the CAS engine.

I'm wondering about the following feature:

When trying Xcas/Giac online, it supports LambertW, but the HP Prime does not:

You can try Xcas/Gias in browser:
https://www-fourier.ujf-grenoble.fr/~par...casen.html
And entering
solve(x*exp(x)=y,x)
in there, gives as solution:
list[LambertW(y),LambertW(y,-1)]

However, when trying the same expression on the HP Prime, it instead says "failed to isolate solutions"

So was LambertW support removed from Xcas/Giac for the HP Prime?

Thanks