Amount field check does not recognize invalid value

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Symptom
You process a file in ECS Direct Input where some amounts contain invalid values. The system, however, recognizes them as zero values because they contain only comma (,) or dot (.) which for themselves are valid for amount fields, but occur more than one time in the amount field and follow [...]

First Level Check misses errors in consecutive lines

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Symptom
If two lines with errors leading to an ECS Hard Error (posting date, posting key, wrong amounts, inconsistent average activity) are given to the ECS Direct Input, only the the error in the first line will be identified correctly. The second line is marked as OK.
Other terms
Error Correction System, First Level Check
Reason and [...]