The a35k experienced an uncommanded climb after reaching cruising altitude

[MisonoMika]

The cruising altitude was 340, and the step climb was 370
After reaching 370, the aircraft's climb rate slowed down for a while and then continued to climb directly

No tcas alert was received during the flight
This is the video about the flight
https://www.bilibili.com/video/BV1QEXhY1Evz/?spm_id_from=333.1387.homepage.video_card.click&vd_source=303bcfda29d86773e66965a169afcdf2
At 51:03, the aircraft reached 370, but did not stop climbing and began to exceed 370
GMMN/35R N0493F340 RAVO1D RAVOL UH500 NISBA DCT IBLIV/N0489F370 DCT NIPRI/N0489F360 DCT RAKUN RAKU1P LPMA/05
When generating the simbrief plan, the height is automatically generated for the simbrief

GMMNLPMA_M24_24Mar25.pln GMMNLPMA01.fpl