Axolot Data

I have upgraded my C++Builder XE8 to 10 Seattle with Update 1. I installed the latest XLSSpreadsheet2 version (2.00.09). Then I compile my application and made an excel file. I found the borders have problems for merged cells. Only part of borders for those merged cells appeared. On XE8, everything was ok. Now this latest 2.00.09 version on new 10 Seattle, it starts to give me trouble. My codes look like these:
TXLSRange* XLSRange=MyWorkSheeT->Range->Items[StartCol][StartRow][LastCol][LastRow];
XLSRange->BorderInsideHorizStyle=Xc12datastylesheet5::cbsThin;
XLSRange->BorderInsideVertStyle=Xc12datastylesheet5::cbsThin;

Any idea of how to fix that?

Thanks!