No re-rendering after customizing BusinessGraphics

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Symptom
A Web Dynpro ABAP UI Element BusinessGraphics is customised via its method handler (e.g. by calling if_wd_busin_graphics_mtd_hndl~add_direct_customizing( )). If the delta rendering mechanism is active (i.e. the application parameter WDDELTARENDERING is set), it may occur that the customisation changes are not displayed.
Please note that notes 1294871 and 1143770 deal with different problems that [...]

Rendering in WD ABAP: Problems in Release 7.01 SP4

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Symptom
This note summarizes all of the problems that occur in Web Dynpro ABAP, which affect Release 7.00, Support Package 4.
In RichTextEdit, you can mark parts of the text as headers, but you cannot undo this formatting.
Other terms
Web Dynpro ABAP, 7.00 Support Package 4, JavaScript error, RichTextEdit
Reason and Prerequisites
This problem is caused by a program error.
Solution
Upgrade [...]