Matching Field Recording Channels issue

[JamesPondAqu]

Dear All

I am currently working on PT10 Win7 64 bit.
I am trying to use the Matching Field Recording option on a drama I am currently working on.

I have set the search area to look at the drive with the sound rushes.
All fine so far.

However when I right click on a clip and try to select a different matched track eg
Boom Radio Mic etc I get this error

Assertion in "..\..\Sys\Sys_FileLoc.cpp", line 199

If I however physialy copy the audio from the sound rushes from my explorer browser directly into my clip bin and then try to match tracks it works.
I do not however want to copy everything into my Clips bin as the sound rushes are over 300 Gbs.

I have tried copying the sound rushes to another drive but it still has the same error.

Anyone have any ideas?

Cheres

Mr Pond