Hi Alex,
Greetings from Syncfusion support.
The reported query "DROPDOWN ON GRID" was evaluated and could not be reproduced at our end.
So kindly give the information below to reproduce the problem at our end.
1. Do you use custom data source to bind dropdown fields?
2. Do you use the template for columns?
3. If the earlier version of it works, do you mention the version number?
After that, we'll offer the appropriate answer for that.
For more information on the related query, please check the sample link and get back to us, if you require any further assistance on this.
Regards,
Thiyagu S.