Hi,
We detected serious deficiencies in previous unity version for Tizen.
1. If device support multi sensors, games shut down unexpectedly - 5.4.0p4 fixed this.
(e.g. Z2 or any devices with Tizen 3.0 supports accelerator and gravity sensor)
2. When Apps terminating, games occur crash(not normal exit) - 5.5.1p1 fixed this.
3. After booting done, game cannot be started during 1 ~ 2 minutes - 5.6.0b7 fixed this.
Because of these issues, Tizen Store can your Apps reject which use previous Unity version.
To resolve these issues at once, Unity released new engines below.
Please do not hesitate to make the latest build and re-register your Apps in the Tizen store.
5.4.5p1 27 March 2017
5.5.2p3 17 March 2017
5.5.2p4 23 March 2017
(Remark : Unity 5.5.x support Minimum API level Tizen 2.4 above)
https:// unity3d.com/unity/qa/patch-releases