Picker stopped showing when upgrading to api 29

[lironiz]

it actually still functions, but nothing is displayed, meaning, if I click on the right place on the screen, a number will be picked, but I don't see any numbers or dividers.
any idea why?

[Sub-Zero-1]

After updating to API 29, it lost its colors. app:mnpSeparatorColor="@color/colorAccent" has no effect anymore.
My colorAccent was red, so I still saw the picker, but it was just black instead of read. As I changed it to "white" it disappeared and I could do any action anymore with it.