1
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Integrate[Tan[t + 1], t]

-Log[Cos[1 + t]]

Integrate[Tan[1.0 t + 1], t] 

The second input causes Mathematica 11.3 to hang, requiring one to quit the Kernel

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    $\begingroup$ Indeed. Same problem on my Mac laptop (v. 11.3.0). Weird. $\endgroup$ – David G. Stork Nov 22 '18 at 7:32
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    $\begingroup$ If you find a bug, report it to Wolfram. Please do not use StackExchange as a bug tracker. Problems won't get fixed unless you report them directly to Wolfram. $\endgroup$ – Szabolcs Nov 22 '18 at 8:05
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    $\begingroup$ I'm voting to close this post as off-topic because it is not a question. $\endgroup$ – Szabolcs Nov 22 '18 at 9:41
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    $\begingroup$ No, it's a statement to the fact that Wolfram should be making basic software work instead of trying to be all things to all people. There are a lot of inefficiencies and flaws in Mathematica, often worse in newer versions, but on this forum people are just happy talking about workarounds. $\endgroup$ – user61531 Nov 22 '18 at 9:51
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    $\begingroup$ Report it to Wolfram? $\endgroup$ – ktm Nov 22 '18 at 17:13

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