Comment 4 for bug 1720480

This still happens sporadically.
We faced it a couple of times during focal testing of d-i (with now got replaced by subiquity).
Especially when d-i asks to enter a installation password it's often the case that OS Messages doesn't refresh. Interestingly one can type blindly and hit enter and the installation proceeds - hence another indicator that it's most likely a refresh issue.

With subiquity the installation is done either via the Integrated ASCII console or with via an ssh shell - hence one will not face this using subiquity.