ringtone did not transfer to my new phone

I have a new SE, all the ringtones I created which was playing well on my previous SE did not transfer to my new SE.

So I tried to copy & paste my ringtones to my new SE but the pop up message keep saying that "whatever.m4r was not copied to iPhone because it cannot be played on this phone".

OK, what's going on? Is there any solution for this issue?