SSRS 2016 Matrix Dynamic Column Group Overflow Bug when LayoutDirection is RTL

Question

SSRS 2016 Matrix Dynamic Column Group Overflow Bug when LayoutDirection is RTL

ايمن نبيل 0

Hi SSRS Product Team,

We are experiencing a critical rendering bug/limitation in SQL Server Reporting Services (SSRS 2016 / Report Builder version 15.0.200) related to Right-to-Left (RTL) dynamic matrix expansion.

Description of the Issue: When designing a cross-tab report using a Tablix (Matrix) with dynamic column groups, and setting the LayoutDirection property to RTL on the Tablix (and Direction to RTL inside the Report Body Style via the RDL XML), the dynamic columns do not render or expand correctly within the page boundaries.

Instead of wrapping, expanding safely inward, or cleanly splitting into a secondary logical page (as standard LTR overflows do), the dynamic column group completely breaks the page constraints and overflows into the negative X-coordinate space (to the left/outside of the physical page canvas), making the generated columns completely clipped and unreadable during runtime preview and print layout.

Environment Details:

Product: SQL Server Reporting Services 2016

Report Builder Version: 15.1.30001.02

Target Schema: http://schemas.microsoft.com/sqlserver/reporting/2016/01/reportdefinition

Language/Culture: ar-YE / ar-SA

Steps Taken:

Verified that Page Width, Margins, and Body Width are perfectly calculated and balanced (Standard A4 Landscape).

Tried anchoring the Tablix at both Left = 0 and applying the formula Safe Left = Body Width - Tablix Width.

Applied <Direction>RTL</Direction> directly to the <Body><Style> container inside the RDL source code.Hi SSRS Product Team, We are experiencing a critical rendering bug/limitation in SQL Server Reporting Services (SSRS 2016 / Report Builder version 15.0.200) related to Right-to-Left (RTL) dynamic matrix expansion. Description of the Issue: When designing a cross-tab report using a Tablix (Matrix) with dynamic column groups, and setting the LayoutDirection property to RTL on the Tablix (and Direction to RTL inside the Report Body Style via the RDL XML), the dynamic columns do not render or expand correctly within the page boundaries. Instead of wrapping, expanding safely inward, or cleanly splitting into a secondary logical page (as standard LTR overflows do), the dynamic column group completely breaks the page constraints and overflows into the negative X-coordinate space (to the left/outside of the physical page canvas), making the generated columns completely clipped and unreadable during runtime preview and print layout. Environment Details:
- Product: SQL Server Reporting Services 2016
- Report Builder Version: 15.0.200
- Target Schema: http://schemas.microsoft.com/sqlserver/reporting/2016/01/reportdefinition
- Language/Culture: ar-SA Steps Taken:
1. Verified that Page Width, Margins, and Body Width are perfectly calculated and balanced (Standard A4 Landscape).
2. Tried anchoring the Tablix at both Left = 0 and applying the formula Safe Left = Body Width - Tablix Width.
3. Applied <Direction>RTL</Direction> directly to the <Body><Style> container inside the RDL source code.

Lakshmi Narayana Garikapati 1,330 Reputation points Microsoft External Staff Moderator

2026-05-25T08:52:03.0133333+00:00

Hi ايمن نبيل,
Thank you for your detailed explanation.

To help resolve this further, I recommend raising a support ticket so our support team can assist you directly. Please refer to the following link for instructions on how to create a support ticket:

https://support.serviceshub.microsoft.com/supportforbusiness/create

We appreciate your engagement and thank you for being an active part of the community.

Thanks,

Lakshmi.
Gabriel Enrique Marcano López 5 Reputation points

2026-05-31T19:40:58.9033333+00:00

Hi @ايمن نبيل ,

This behavior is a limitation/bug in SSRS 2016 when using RTL layout with dynamically expanding matrix columns. There is no perfect fix in this version, but you can mitigate it with these practical workarounds:

Keep the report layout LTR and only set RTL on text content Do not set LayoutDirection = RTL on the tablix or report body. Instead, leave the layout LTR and set RTL/Right alignment only on the textboxes so the matrix keeps expanding inside the page instead of going into negative X coordinates.

Give the matrix more “safe” space inside the body Slightly reduce the Body width and position the matrix so it has extra room to grow inside the page. This does not fully fix the renderer bug, but it reduces clipping when the number of dynamic columns is moderate.

If possible, test the same RDL on a newer SSRS / Report Server build RTL behavior is better in newer releases; if the report works there, it confirms this is a 2016 rendering limitation rather than a design issue.

For a full root‑cause analysis or a potential hotfix, the right next step is to open a support ticket with Microsoft, as the moderator suggested, and attach a minimal RDL that reproduces the issue.

Thanks, Gabriel