SDK 2023 - Bug in function AIRealRectUnion

Hi all,

The following setup is used:

• Windows 10
• Adobe Illustrator 27.8.1 (64-bit)
• SDK 2023 (downloaded 14th of August)

I want to get the union of two rectangles, using the following code:

AIRealRect testRealRect1, testRealRect2;
testRealRect1.top = 0; 
testRealRect1.left = 0; 
testRealRect1.bottom = 1323;  
testRealRect1.right = 2116;
testRealRect2.top = 917; 
testRealRect2.left = 442; 
testRealRect2.bottom = 1328;  
testRealRect2.right = 1662;
AIRealRect unionRealRect;
sAIRealMath->AIRealRectUnion(&testRealRect1, &testRealRect2, &unionRealRect);

I am expecting the following result:

unionRealRect.top = 0

unionRealRect.left = 0

unionRealRect.bottom = 1328

unionRealRect.right = 2116

But I am getting the following result:

unionRealRect.top = 917

unionRealRect.left = 0

unionRealRect.bottom = 1323

unionRealRect.right = 2116

My question is:

Why does the function AIRealRectUnion return a union-rectangle that is only a part of testRealRect1, although it should return the union of testRealRect1 and testRealRect2?

Any help would be very appreciated.

Thanks in advance.

Fabian T.