Bees attempt to navigate to flowers and nests through solid ground (full blocks).
In the case of the image, there are two full blocks between the bees and the flower above.
Environment
CPU: Intel Core i7-7700 (3.6GHz - 4.2GHz, 1.110v)
>>Corsair H55 Liquid Cooler
OS: Windows 10 (64-bit, Build 1903)
MOBO: Asus Maximus IX Hero
RAM: 32Gb DDR4 (2666MHz, 2x16Gb)
GPU:
---GTX 1060 (1936MHz Core, 4006MHz Mem, 6Gb)
---GTX 950 (1024MHz Core, 1652MHz Mem, 2Gb)
(NVidia Driver 441.41- now 441.66)
MONITOR:
---Primary: Acer V226WL (1680x1050, 16:10, 60Hz)
---Secondary: Acer K202HQL (1366x768, 16:9, 60Hz)
STORAGE:
---110Gb Hyundai SSD (OS location, MC location)
---1Tb 860 EVO SSD
---1Tb HDD
Created several obstacle courses for bees to navigate to POIs directly above and below flowers. Bees attempted a flight upwards, but then started moving towards the true exit and towards their hive afterwards.