answering problem

i have a wierd problem with my meizu m2 note.
cant slide the phone icon to answer an incoming call.
it is stuck.
only if i restart phone its got fix.
it seem to return over and over again.
i dont know what to do.
i also have it when i try so make an outgoing call.
does anyone had this problem or anyone know how to fix it?
with regrads to the helpers…

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