From which version exactly (to which version)?
2019.12 -> 2020.01 (stable) is known to somewhat reliably break in a very very bad way (i.e, it hangs indefinitely, unless you're "lucky" enough to have the connection drop out ^^).
Switching to nightlies instead of stable may or may not help, which is why we've been recommending a manual upgrade in the two issues opened about it

.
That said, the update backend has *just* been updated in current nightlies, so this should (hopefully) never happen again.
And I'm currently experimenting with making the actual status/progress visible, instead of a simple blind spinner.