Legendary Gem missing after Changing Class

In addition to a description of the bug you are reporting, please provide:

Device Type: Nubia RedMagic Pro
Device Model: 7 Pro
Device Operating System: Android 13
Diablo Immortal App Version: 4.0.1

I had a missing Rank 30 Legendary Gear slotted at alt secondary hand along with Quality 3 Rank 4 Chip of Stone flesh and the Orange socket rune. This happen on July 4 when the release of Druid class and tried the new class. After the change class, noticed that I had a missing Legendary gear and was unable to find it anywhere even at stash. The next day I had revert back my Tempest class to see if the gear will goes back but still nothing up until today. Please help