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Description:
When a structure is marked as a nucleotide component or S-group, and the abbreviation is moved to a new location in the contracted state, expanding the structure afterward results in a distorted layout. Bonds and atoms are displaced, and the overall geometry no longer reflects the original shape.
This behavior affects both macromolecule components (Base, Sugar, Phosphate) and generic S-groups.
Description:
When a structure is marked as a nucleotide component or S-group, and the abbreviation is moved to a new location in the contracted state, expanding the structure afterward results in a distorted layout. Bonds and atoms are displaced, and the overall geometry no longer reflects the original shape.
This behavior affects both macromolecule components (Base, Sugar, Phosphate) and generic S-groups.
Steps to Reproduce
Actual behavior
The structure is expanded with distorted layout — bond angles and atom positions are shifted.
Expected behavior
Expanded structures should retain their original geometry regardless of abbreviation repositioning.
Screenshots
Nucleotide components:
2025-07-02_15h58_04.mp4
S-groups:
2025-07-02_15h54_32.mp4
Desktop:
Version 137.0.7151.104 (Official Build) (64-bit)
Ketcher version
[Version 3.6.0-rc.1]
Indigo version
[Version 1.34.0-rc.1]
This bug was found while testing: #7164