Come on, we all know that there are several bugs in the initial versions of new content and usually Eva Kiss eliminates them until the next version she publishes. As you mention yourself it's hard to find certain scenes and I myself did several runs until I got the Ash-Jess scene in v24, I even came across some content I wasn't aware of before. You may play this game in so many ways I never saw in any other game here.
I wasn't talking about that, I didn't explain myself well enough it seems. I'll try with an example: in this version there is one (in fact several) bug regarding the variable "ericbf", it's not always set to true when it should and in some routes is not even properly defined. This has been reported and is gonna be fixed for sure... BUT... If you or anyone play the next update with a save from just before -let's say- Jess date, as that happens after Eric's reunion scene when that variable is modified... you'll simply miss that fix and continue having troubles and running into exceptions in the next updates. Believe me, this sort of thing happens a lot.
By all means, play as you want and try to discover all possible routes, scenes and outcomes (that's imho the great thing about this game!), but in order to play the next updates is really really a very good idea to don't keep saves from alphas, replay the update when the final version is released if necessary and go on playing with that. That's just an advice, of course, not trying to be a dick about it, sorry if something came out wrong before.