"Over the next few hours we’ll be rolling out a fix to return lost Gear to our affected users. You’ll need to reboot your console to get the update. Keep in mind it may take some time for your Gear to sync. Thank you for your patience!"
To all experiencing the issue of lost gear from the latest Injustice 2 patch, should read the statement below:
Source: WB Support
UPDATE 10/5/17: Injustice 2 Gear Issue response from WB Support