Question: plot of function

Hey, guys! My Maple 2020 program does not build a plot. that is, it cuts it off. everything is correct in maple 2015.

plot(140^t*exp(-140)/t!, t = 0 .. 300)

Maple 2015

plot(140^t*exp(-140)/t!, t = 0 .. 300)

 

My maple 2020 creates

 

 

Why???????????

 

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