If I try to add a light to this scene, it crashes IClone 7. Been having a lot of issues with lights with 7.7.

Replication steps:

Open project
Create > Light > Directional Light

Download project file here:
https://drive.google.com/open?id=1nX7o0DBx4R_IdE7OGx6jLK0NrE1D8ZJH

Notes:
-If you delete all the trees in the scene, then create a light - it works
-If you turn on the auxiliary light and then create a light - it works
-The program crashes if the trees are there, and the auxiliary light is off.

My computer specs:
G-SYNC Monitor 144hz
Intel® Core™ i7-7820X Processor (8x 4.30GHz/11MB L3 Cache)
Corsair Hydro Series H115i 280mm Liquid CPU Cooler
ASUS ROG STRIX X299-E Gaming Motherboard
32 GB DDR4-3200 GSKILL Ripjaws V Memory
NVIDIA GeForce GTX 1080 Ti - 11GB - EVGA FTW3
EVGA 1000w Power Supply - 80 PLUS Gold; Full Modular
250 GB Samsung 960 EVO M.2
500 GB Samsung 850 EVO SSD
4 TB Hard Drive Raid 0