Replying to this just for anyone that can't see the endings when using kin kun's joiplay version. If you move your save from kin kun's joiplay version (the save where you are about to get an ending and it shows the screenshot of uncaught error header is wrong undefined) to the windows version (the version where you can't click on Rio's laundry basket or go outside on joiplay) to see the endings yourself on joiplay. I don't know why using the windows version on joiplay only gives me 6 saves so this a heads up. I play the game on kin kun's joiplay version and then save when I'm about to get a ending and make a duplicate for it because I had an issue moving my save to the windows version and it ruined my save so I just made a duplicate in kin kun's version and moved the duplicate save to the windows version (e.g save 51 and save 52 would be the duplicates of the ending that's bugged in kin kun's, and I move whichever save to the windows version and then rename the save number to one of the 6 empty save slots i.e file(# of the bugged end sace from kin kun's version).rpgsave to file(# either 1 through 6 in windows version).rpgsave then close joiplay and reopen to see if it worked). The "saves" files are in the "www" files of the extracted summer memories files. I wrote this extra long and hand holding message for anyone that is new to this, and issues that happened to me. If you still have problems, reply to this.
I see and hear good sir, i've finished the game entirely on Windows and my intentions for reporting the bug i found is solely to support the joiplay version to be bugfree. Of course no pressure to kin kun.
I've the same problem...is it fixed??
