Adding Mask Paint crashes Fusion/Resolve 16b4 [fixed]

In case MaskPaint is attached after polygon node Fusion 16 will crash

steps to reproduce:

1) add BG node and load it to the viewer
2) add any mask (Polygon, Ellipse) node to BG mask input
3) append MaskPaint node to this mask tool

Happens on Fusion 16 beta 4 and Resolve 16 beta 4
tested on Windows 10 with cuda GPU and Quadro K5000

You can build set of nodes as shown on a screenshot and then load BG to the viewer, it will crash then

viewtopic.php?f=22&t=91000

ok, still relevant then

still crashes in beta 5

Confirmed. Still crashes in beta5.

Fixed in Beta6:
-- adding PaintMask after paint tool with tool loaded to viewer - thanks!

still crashes:
-- adding Wand after paint tool https://cl.ly/a42cae0ed0df
-- adding Ranges with Image input after paint tool https://cl.ly/b58414938f3d, https://cl.ly/81bf1ddefebf

Fixed in beta 7