1. This only seems to happen when running the published version of the application. Whether it's on iOS or via the web player. When I run a 'preview' inside the studio, the app behaves correctly.
2. I do have an If statement that controls the height of the gallery based off number of results (countrows) but even if I take that out and put in a static height, the gallery appears to remove all items instantly after displaying them.
3. This does seem to happen on only one screen. I have flexible gallery on a few different screens, and I've basically copied most of the formulas and height controls, but now that you mention it, it does only appear to happen on this one screen.
Again, the interesting thing is this only seems to happen 'the first time.'
Basically, I have 3 links on my homepage that say '3 Day Report, 7 Day Report, 30 Day Report.' When I click on one, it loads the screen in question and passes a 'fromdate and a todate' variable then runs some sql based off that. The first time hitting the page (every first time when loading the app) the gallery will show results then quickly disappear (almost so quickly you miss it if you blink). When I hit the 'back' button to go back to the home page and select a DIFFERENT report option, the screen reloads with the new 'from date' and 'to date' variables and the screen works as expected. If I then go back and select my 'original' option, the screen works again as expected. It doesn't matter WHICH report option I choose first, they all act the same.
Hope this helps add some context!