This is a strange issue as it sounds like it is sporadic... The only OS specific code the engine uses when decompressing images is when the image has an embedded colour profile.
So I guess the question is whether the images which are ‘breaking’ have such a thing in them. I think preview’s info pane can tell you that. Thus a potential solution is to strip the profiles out (if they are there) and see if the problem persists... Warmest Regards, Mark. Sent from my iPhone > On 4 Jun 2019, at 17:57, Matthias Rebbe via use-livecode > <use-livecode@lists.runrev.com> wrote: > > Those are some screenshots how my app looks since Mojave. i put them in one > image to show the difference. > The normal/correct look is the orange one on the right. The other 2 are how > the app looks when it is displayed wrong. The app even showed white once, but > i did not make a screenshot of it. > > It´s allways the same app. As i wrote, after a restart, sometimes it takes 2 > or more restarts, the app is displayed correctly again. > But the next start could be wrong again. > > My stack uses a custom shape in the same size of the png, that´s the reason > why the complete app is black. > The png image is displayed in an image control. > > This is the image i am using in my stack for the custom shape and as the > background > https://dl.qck.nu/samples/Background_mit_Rand_.png > <https://dl.qck.nu/samples/Background_mit_Rand_.png> > > Regards, > > Matthias > > > Matthias Rebbe > > free tools for Livecoders: > https://instamaker.dermattes.de <https://instamaker.dermattes.de/> > https://winsignhelper.dermattes.de <https://winsignhelper.dermattes.de/> > >> Am 04.06.2019 um 17:28 schrieb tbodine via use-livecode >> <use-livecode@lists.runrev.com <mailto:use-livecode@lists.runrev.com>>: >> >> Thanks for that info, Matthias. >> >> Please clarify: >> Is the image you posted a screenshot of three separate png files or one >> composite image? >> If separate, what are the differences between the files? (Strikes me as odd >> that the black is only a part of the image. In my cases, users see entire >> rectangles of black.) >> Are the images in the screenshot being displayed in LC image controls or >> through some other app? >> >> Thanks, >> Tom Bodine >> >> >> >> >> >> -- >> Sent from: >> http://runtime-revolution.278305.n4.nabble.com/Revolution-User-f278306.html >> <http://runtime-revolution.278305.n4.nabble.com/Revolution-User-f278306.html> >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com <mailto:use-livecode@lists.runrev.com> >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode >> <http://lists.runrev.com/mailman/listinfo/use-livecode> > > > > Matthias Rebbe > > free tools for Livecoders: > https://instamaker.dermattes.de <https://instamaker.dermattes.de/> > https://winsignhelper.dermattes.de <https://winsignhelper.dermattes.de/> > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode