Problem with Show

Question

I have the following code that generates two 3-D graphs. When I try to visualise the graphs together with Show command only the first one is shown. I interchanged the order but still it shows only the one I put first. Never faced such a problem with Show command. Could you please help?

LF7 = {2079.6965019978416`, 1803.4376474050528`, 1527.1615374986422`, 1250.856394855333`, 974.4966166565208`, 698.01423619156`, 421.1516664158343`};
galpha7 = {0.72`, 0.75`, 0.7826086956521738`, 0.8181818181818181`, 0.8571428571428572`, 0.9`, 0.9473684210526316`};
\[Gamma]alpha7 = {0.00316055625790139`, 0.0030341340075853347`, 0.0029077117572692793`, 0.0027812895069532235`, 0.002654867256637168`, 0.0025284450063211123`,   0.002402022756005057`};
lsta7 = Table [{galpha7[[i]], \[Gamma]alpha7[[i]], LF7[[i]]}, {i, 1, 7}];
Pa7 = ListLinePlot3D[lsta7, PlotStyle -> Directive[Cyan, Thick, Dashed], PlotMarkers -> Automatic, AxesLabel -> {"g", "\[Gamma]", "\!\(\*SubscriptBox[\(f\), \(L\)]\) (Hz)"},    LabelStyle -> Directive[Black, Bold], PlotLegends -> SwatchLegend[{Cyan}, {"CC"}], PlotRange -> All];
LF8 = {4269.328602125276, 3005.305274547868, 2373.2787439520644, 1741.2276891573697, 1109.1092112454387, 792.972778446509, 476.64231508537097}; galpha8 = {0.7346938775510204, 0.8, 0.8372093023255813, 0.8780487804878049, 0.9230769230769232, 0.9473684210526316, 0.9729729729729729};
[Gamma]alpha8 = {0.0046226415094339605, 0.004245283018867924, 0.004056603773584905, 0.0038679245283018858, 0.003679245283018867, 0.003584905660377358, 0.0034905660377358484`};
lsta8 = Table [{galpha8[[i]], [Gamma]alpha8[[i]], LF8[[i]]}, {i, 1, 7}];
Pa8 = ListLinePlot3D[lsta8, PlotStyle -> Directive[Black, Thick, Dashed], PlotMarkers -> Automatic, AxesLabel -> {"g", "[Gamma]", "!(*SubscriptBox[(f), (L)]) (Hz)"}, LabelStyle -> Directive[Black, Bold], PlotLegends -> SwatchLegend[{Black}, {"CB"}], PlotRange -> All];
Show[Pa7, Pa8]