Hi All, I identified the following models that succeed to serialize but fail when deserialzing: 1a package MechanicalObjectExample { abstract item def MechanicalObject { attribute mass :> ISQ::mass; } abstract item mechanicalObjects[*] : MechanicalObject; metadata def <me…

Thanks, I can reproduce it now. The crash was due to deserialization of Memberships failing when they referenced external elements (unresolved references). Fixed both the crash which now throws an error instead, and deserialization of such Memberships for the next release.

Json serialization/deserialization bugs

Syside Bug Reports

Daumantas November 14, 2025, 12:55pm 3

Fixed in v0.8.2

Topic		Replies	Views
Json serialization/deserialization is not symmetric Bug Reports sysmlv2 , resolved , automator	19	98	October 6, 2025
Json deserialization requires elements to be in order Bug Reports resolved , automator	16	112	October 8, 2025
'Component' missing in deserialized model Bug Reports resolved , automator	4	41	October 8, 2025
Syside crash when convert json to sysml textual Bug Reports automator	2	31	November 25, 2025
Syside 0.8.3 Changelogs	0	76	November 27, 2025

Json serialization/deserialization bugs

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