I recently purchased the BLU Vivo One Plus 2019, which runs Android Oreo (8.1). After installing kiss launcher and setting as my default launcher, I rebooted my device and the launcher reset back to the pre-installed Launcher3. Note that my other default applications remain, for example I also changed the default messaging app to Signal.
Are there any workarounds for this? How can I retain my preference for the default launcher?