I’m having the same startup issue, and I reverted to graphics driver 451.67 from the latest with no luck in affecting the startup of Boundless.
I have a Dell G3 Laptop, with an nVidia 1060 graphics card + intel integrated graphics. If I set the control panel settings to use integrated graphics, the game starts, but if I set it to use the 1060, it pops up with the errors reported above.
(Default texture not created - Failed to init D3D Texture (0x887a0005))
I have full video memory available, full ram, no extra running programs, no monitors or peripherals hooked up to my laptop. Any help would be most appreciated.