FM Go Portal in Slide Control flashes when swiping.
Operating system version
Description of the issue
Portal placed within a Slide control with at least two slides flashes its contents when swiping from the other slide to the slide containing the portal.
Steps to reproduce the problem
Create a slide control with at least two slides and swipe enabled.
Place a portal on the first slide, enable "show vertical scroll bar". The second slide can be empty.
Swipe to go to the second "empty" slide, then swipe back to the first slide containing the portal.
Just before the slide occurs, the portal briefly flashes on the current slide layer, then the slide moves to the destined position.
Flashing of the portal when "show vertical scroll bar" enabled.
Exact text of any error message(s) that appear
No script triggers, no scripts. Just the layout.
Disable the vertical scroll bar on the portal, but not really a workaround since the whole point was to have more data available vertically via a scrolling portal.