What is the problem?
We have the Yud of ידכם and the Vov of והיו and they are practically the same length.
A short vov (depending how short) is technically a Yud and a long Yud (depending on length) is a vov.
Usually each Shaloh is presented individually and judged accordingly and in context to the Ksav... However here we have a Vov and a Yud practically the same length and one after the other. This makes it a bit more difficult because they can't both be Kosher.
I bought this to a Rav who Paskend that the Vov was to short and this Mezuzah is not Kosher.