Hello LucaMS,
I am using your library lmB4XComboBox, latest version Version: 3.00 02/21/2026 and when compiling (B4A) it gave me an error: mCmbBox.Items.Clear
I saw what the problem was and fixed it for me, and please check it and see if it is well solved, it works in the section
#If B4A
mCmbBox.Clear
#Else If B4J
mCmbBox.Items.Clear
If it is good, make a new version, the library is too good
Regards
Guco
Eu acredito que é a versão do android do seu aparelho, você pode até mudar no Manifest para o minSdkVersion do seu aparelho.