CoreBluetooth Scan not working when OS upgraded to 18.3.1

Hi, I currently have an app that connect to an arduno via CoreBluetooth. However, the app no longer discovers the arduino when the operating system was upgraded to iOS 18.3.1, however on iOS version 17.6.1 the ardiuno was discoverable I was able to test this theory on two different phones each with different iOS versions. Why are my peripherals no longer being discovered with this update? and what is the solution?

CoreBluetooth Scan not working when OS upgraded to 18.3.1
 
 
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