Spinor[-Momentum[p5], M5, 1]
is displayed like
when it stands at the beginning of a Dot product, seems to be a decision of Rolf's, for which I'm sure he has his reasons.
That the mass argument is not displayed is a bug, which has been fixed. The fix will be in the next release together with many other fixes.
2) Was not a problem with FeynCalcForm, but with ComplexConjugate. Has been reported before and fixed. See http://www.feyncalc.org/forum/0001.html. I saw it only on the command line because there I was using an old version without the fix.
New version will be uploaded as soon as possible.
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