Hello,
I don't know what is the problem, the latest fix pack for V8.5 is V8.5.0.10, therefore asking you to upgrade to V8.5.0.7 means that there is really a correction behind.
If you look at the readme of V8.5.0.7
http://www-01.ibm.com/support/docview.wss?uid=swg21634767, you will be able to see the following:
- PM74182 - PDF IDX MASK w/"%" can't find FIELD w/trailing blanks
- PM75386 - PDF library fails writing temporary files to memory
- PM86531 - Enable PDF lib initialization options to prevent repeating
- PM81071 - PDF docs not retrieved if ARSSOCKD started in "/" on AIX
So what is exactly the problem you are facing? I have no clue, but probably this one: PM75386.
Ask the IBM Support for more explanation.
CMOD V8.5.0.6 is more than 2 years old, my advice for you will be to update CMOD in a regular basis if possible. And upgrade when you want the latest functionality or when you need to upgrade, because of End Of Support.
For your information CMOD V8.5 has a date for end of support, which is end of April 2016. Don't wait too much :-)