Our aim in this paper is to deal with the continuity of generalized Riesz potentials $I_{\rho,\tau} f$ of functions in Morrey spaces $L^{\Phi,\nu(\cdot),\kappa}(X)$ of double phase functionals with variable exponents over bounded non-doubling metric measure spaces. What is new in this paper is that $\rho$ depends on $x \in X$.