@DoubleAA Okay, so I looked at the Wikimedia Commons scans.
Ex 4:10 has either no
tip'cha or it's written in the same place as part of the letter and/or
kamatz. (I'm unfamiliar with the codex, so dunno whether it's plausible that it's written like that.)
Dt 24:10 has no
tip'cha (though it has a mark under the
resh that looks like a
mer'cha to me).