I am facing the same problem with our own hardware device operating in the peripheral role. scanForPeripherals works on my iPhone SE v3 running iOS 18 and earlier, but not on iPhone 15+ running 17.6.1 or iPhone 11 running 17.7. It had been working for years on earlier iPhone and iOS versions.
Tim9909
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I have the same problem, running Catalina 10.15.2. Console log shows that download completes, then App Store process gets killed for exceeding memory high water.