Hello Baraah,
Please check what items are placed on the right side, which may prevent the space from being freed -
How Report Items are Arranged in a Section and
Visibility. You can add background color to each item and section to check if they are actually hidden and which holds the space.
In order to provide you more accurate suggestions, please open a support ticket and send us the problematic report (code). Include also a link to this forum discussion for reference.
Regards,
Stef
Telerik by Progress
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