Scatter Chart is suitable for numerical expression on the X axis, not suitable for expressing rich time.
Therefore, I recommend using a Line Chart to try it.
Insert Null under each row of your table.
Example:
index="dotchart" source="DotChart.csv" sourcetype="csv"
| stats values(MFT_fromFileBytes) as Bytes by _time,MFT_job_name
| eval {MFT_job_name}=Bytes
| append
[ search index="dotchart" source="DotChart.csv" sourcetype="csv"
| stats values(MFT_fromFileBytes) as Bytes by _time,MFT_job_name
| eval Bytes=null
]
| sort 0 _time,MFT_job_name
| fields - Bytes,MFT_job_name
2. Set the graph as follows.
Graph: Line Chart
Setting: format> General> Null Values> select [Gaps]
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