# Diagram problems after migrating

Start from what you are seeing. Each page names the symptom, explains the cause, and says what to do next.

Several of these are not faults at all: they are numbers that look alarming and are not, which is worth knowing before anybody raises a ticket.

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## Symptoms

[Migrated diagrams show old contentWhen version history was replayed, the oldest version became the first version, and the migrated macro was lef](https://help.gocapable.com/migration/migrated-diagrams-show-old-content.html)

[Every copy of a multi-tab diagram shows the first tabThe migration ignored each embed's chosen tab.](https://help.gocapable.com/migration/every-copy-of-a-multi-tab-diagram-shows-the-first-tab.html)

[Migrated diagrams are the wrong sizeThe layout was set at migration time by the classic draw.io layout option, which defaults to off. Migrations r](https://help.gocapable.com/migration/migrated-diagrams-are-the-wrong-size.html)

[Diagram references have machine-generated titlesAn earlier bug leaked internal titles onto migrated references.](https://help.gocapable.com/migration/diagram-references-have-machine-generated-titles.html)

[Catalogue thumbnails for migrated diagrams are blankUntil Capable generates its own thumbnail, a migrated diagram points at the old vendor preview image on the or](https://help.gocapable.com/migration/catalogue-thumbnails-for-migrated-diagrams-are-blank.html)

[Thousands of draw.io macros failed on invalid diagram contentA known, since-fixed bug: diagram files were read as text rather than as raw bytes, so drawings stored inside ](https://help.gocapable.com/migration/thousands-of-draw-io-macros-failed-on-invalid-diagram-content.html)

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## Everything under here

[Migrated diagrams show old contentMigrated draw.io diagrams are showing old content instead of the current drawing.](https://help.gocapable.com/migration/migrated-diagrams-show-old-content.html)[Every copy of a multi-tab diagram shows the first tabA diagram file with several tabs was embedded more than once on a page, and now every copy shows the same first tab.](https://help.gocapable.com/migration/every-copy-of-a-multi-tab-diagram-shows-the-first-tab.html)[Migrated diagrams are the wrong sizeMigrated diagrams are scaling to the column when I wanted them to keep their original draw.io size (or the other way round).](https://help.gocapable.com/migration/migrated-diagrams-are-the-wrong-size.html)[Diagram references have machine-generated titlesDiagram Reference macros are showing gibberish machine titles.](https://help.gocapable.com/migration/diagram-references-have-machine-generated-titles.html)[Catalogue thumbnails for migrated diagrams are blankCatalogue thumbnails for migrated diagrams have gone blank.](https://help.gocapable.com/migration/catalogue-thumbnails-for-migrated-diagrams-are-blank.html)[Thousands of draw.io macros failed on invalid diagram contentThousands of draw.io macros failed with a message about invalid diagram content.](https://help.gocapable.com/migration/thousands-of-draw-io-macros-failed-on-invalid-diagram-content.html)

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## Related

[TroubleshootingEvery symptom.](https://help.gocapable.com/migration/troubleshooting.html)

[Repair and rollbackFixing forward.](https://help.gocapable.com/migration/repair-and-rollback.html)

[Results and logsReading the report.](https://help.gocapable.com/migration/results-and-logs.html)

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_Three of these have a repair tool._