Both SfCombobox and SfDropdownlist are (sometimes) wrong rendered.
ONLY on release version (Azure).
In screenshot - 1.png, you can see good version of sfDropDownList.
In screenshot - 2.png, you can see broken version of sfDropDownList. Note that classes e-control and e-dropdownbase inside sfDropdownList are missing. If there is SfGrid bellow, then it's smaller (only about 5 rows shown).
After reloading page, it's OK (mostly).
Attachment: screenshots_26f53be1.zip