The link to a local file does not work in version 3.2. It works in 3.1.2 and in other pdf reader.
Most probably a currently known open issue
Does it add the file prefix part way through the link ?
I have the same problem.
A temporary workaround
(works for 3.2 but not 3.1.2 and may not be valid in a later 3.2.1)
as mentioned in above reported issue,
is to try
/../ prefix which will be translated as another relative child of the same parent