So I'm Playtesting a Module I'm Developing

One of my playtesters is encountering an error stating one of the pngs can’t be found on start up when loading a saved or logged file.

However I don’t see the problem on my primary machine, a Mac Pro. However, I loaded it on a virtual Windows 10 and got the error.

Am I correct to assume it’s a heap size issue?

Unless the graphic is HUGE, I don’t think the heap size is the problem. Sounds like whatever algorithms were used to save the graphic work well in Mac but not in Windows. Was the graphic created on the Mac? If so, load the graphic into an editor on the Win machine and re-save it. Put is back in the module and see if the problem goes away.