Refunding to more than 4 tender types

Extreme example I know but has anyone else tried to refund a transaction back on to more than 4 tender types (either different TT's or the same TT with the 'Allow multiple entries' option checked).

I have tried this on 2.0.0155 and 2.0.1006 and get a "Run time error 340 ... Control array element '5' doesn't exist" error and the PoS ungracefully crashes when I accept the error.

Guessing the array to hold the TT values is not big enough and this isn't handled by the code.

Just wondered if anyone else had come across this error before, have had a trawl around the forums and cannot see anything related.

Cheers

Simon