If we were to calculate net adjusted results in hands like this it would introduce a systematic bias (because there will be more known strong hands) so we exclude all hands like this from net adjusted calculations. Having the option to fold* after another street is dealt means that in the long run there will be more strong hands which get to showdown and less weak hands. When one player is all-in preflop and other players are not, then they usually have the option to act postflop and this means that sometimes one of them will fold. In a hand where a player is all-in but other players are not, net adjusted results are not calculated. HM2 does calculate EV in this hand (and similar hands) but HM3/PT4 do not as they use a different EV formula to reduce bias in these (and other) types of scenarios. This is not an 'issue' or 'bug' in HM3/PT4.
