Most of the time it works fine. But sometimes when I input Header text (in Korean) and click somewhere else like ListBox (when Memo Box where Header text is input loses focus), Lazarus freezes.

This happens sometimes. So it's hard to explain the specific situation where it happens.

Hello,
I received the file you sent and completed the package installation. Thank you for your help.
However, the program crashes while editing the Columns title using the Editor. I tested it using Lazarus 4.0, I'll test it a bit more and ask again if it's still a problem.

I tried to download and install TeeGrid-Registered-1.18.exe.
But I get an error that "vkSpace" cannot be found.
Please tell me how to fix it.
I'm using Lazarus 4.0

Thank you for your kindness.