First Textbox in Tablix cell defeats CanGrow of other Textboxes if it spans page break

Question

I'm having a problem with the way SSRS handles long text in Textboxes inside a Tablix when the first Textbox is broken by a page break. Here's the simplified setup:

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1. Create a Tablix with a single cell.
2. Add a Rectangle to that cell.
3. Add 2 Textboxes to that Rectangle, one below the other.
4. Ensure CanGrow = True for both Textboxes.
5. Add data to each Textbox such that each one contains multiple lines and the first contains enough lines to force some of it's lines past the end of the page. It helps to set the Page height to something ridiculous like 1 inch for testing purposes.

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It's necessary to preview the report in Print Layout mode or export it to PDF to see that all the lines in the first Textbox print, but the second Textbox only prints the first line. Taking enough lines out of the first Textbox to avoid splitting it across a page will allow the second Textbox to print all of its lines.

Am I missing something? Is there a way to get the Tablix to behave properly across page breaks? It's the Tablix because moving the Rectangle and Textboxes outside of the Tablix fixes the problem. I don't see a CanGrow or similar property on the Rectangle or Tablix. A workaround is to put each Textbox into its own Tablix row, but that's not ideal in my situation.

Answer 1

I was able to reproduce the problem, but looks like there is an easy workaround:

If you nest a second rectangle in the first, and then nest the second text box within that rectangle, my pdf come out correctly. I tried this with BIDS 2208R2, 11x8.5 (landscape) pages.