Import textual model and export it again changes model

[sinelabore]

Hello,

running version syson:v2026.7.0

I imported the following textual model and exported it again.
https://github.com/sinelabore/examples/blob/master/SysML_V2_TextualNotation/traffic_light_system/tl.sysml

After the export I noticed the following issues:

• first X then; — semicolon on the wrong side
• Spurious transition keyword on entry successions. entry; then PreOperational; became entry ; transition then PreOperational;
• Silent data loss — assign operands dropped.
• Silent data loss — if block destroyed. checkServiceCounter went from a guarded assignment to a dangling expression next to a nested anonymous action; first start and both assign operands are gone
• Missing ; after send TMCEvent::evServiceNeeded via servicePort

Peter

[AxelRICHARD]

Hello,

Thank you for using SysON. The export module does not cover 100% of SysMLv2 language and also contains some errors.
We try to improve it release after release, so stay tuned!

Thank your for your understanding.

Regards,