Yeah, so it must still be with those darn video sprites then >.< It was my first time using video ones instead of regular ones, haha. The problem is, I'm not a coder, that's pretty much why I got Naninovel in the first place :( So when random stuff like this happens that doesn't usually happen, I'm pretty clueless, haha.
I noticed something had changed with the way you implement voice acting in general because, prior to updating Naninovel, I was able to inject sprite expression changes mid-sentence and it was all lovely and smooth. The voice line would play, and the expressions would change as it played. Now if I do that, it pauses playback of the voice line the moment it reaches an expression change command even if the expression change includes a skip/no wait command >.<
Anyways, it's not your problem to figure out so I will try to shush my rambling x3 I appreciate you taking the time to reply though :3 I'll have to dig around and ask in the Nani support to see if they might know what's up. Cos I essentially have no control over how voice lines play beyond attaching them via the inbuilt auto-voicing system, and that seems to be the main thing causing conflict with the video sprites.
As you say, it's not like it's even a proper crash or freeze for me either >.< It just prevented input when I was testing. Rewinding text by 1 line also seemed to temporarily fix it for me until it did it again, haha. Every time, I was able to resume gameplay by just rewinding 1 line of text, but I mean, that's not practical for a player to have to do :( It kind of means I might as well have just made the whole thing without the video sprites in the first place since anyone not playing a potato version is just gonna get frustrated with it >.<