Copy-pasting text embedded in inline tags in the target impossible

My current (huge) project (Oxygen/DITA) includes many inline tags, one average one tag per segment I would say. Translating all these segments is a challenge because it seems that I have to insert all inline tags manually and exactly as they are in the source segment: I have tried to copy-paste identical text embedded in identical inline tags from one target segment to another but it hasn't worked. Have I overlooked something? Any advice extremely welcome :-)

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