(Top) Measurement of the \pT-differential \RAA\ for muons and electrons from heavy-flavour hadron decays at forward ($2.5 y 4$) and midrapidity ($|y| 0.8$), respectively, in $0-10\%$ Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV , with comparison to MC@sHQ+EPOS2 calculations . Statistical (vertical bars) and systematic (open boxes) uncertainties are shown. The filled boxes centered at \RAA\ = 1 represent the normalisation uncertainty. (Bottom) \pT-differential \RAA\ of muons from heavy-flavour hadron decays is compared with MC@sHQ+EPOS2 calculations with pure collisional energy loss (dashed lines) and a combination of collisional and radiative energy loss.