Tax rate with Offset Tax rate defined (Inclusive Tax Lines)?

 Hi all,

I have a question regarding offset taxes.

I have set up a tax rate with an offset tax rate attached to it, and set the tax rate as standard inclusive, but when applying it to an invoice, the system does not take into account the offset tax.

However, if I change that value to standard non-inclusive handling, I get the offset tax applied.

Any ideas about this issue?

Many thanks!