appium: Appium 1.15 installApp failure crashes appium

The problem

Unsure of the state of our app under test, but something appeared wrong with it. The bad part is that appium just crashed with the error.

Details

2019-10-09 16:05:24:854 - uncaughtException: ENOENT: no such file or directory, open '/var/folders/ll/brhhr98d59j9yjzm3fmjbssw0000gp/T/201999-7374-1bith4f.lgw/Payload/MyApp.app/APDApplePayTourGradeCell.nib/objects-12.3+.nib'

Environment

• Appium version (or git revision) that exhibits the issue: 1.15
• Last Appium version that did not exhibit the issue (if applicable): unknown
• Desktop OS/version used to run Appium: osx 10.14.6
• Node.js version (unless using Appium.app|exe): v12.10.0
• Npm or Yarn package manager: 5.6.0
• Mobile platform/version under test: iOS 13.2.1
• XCode version: 11.1
• Real device or emulator/simulator: iPhone Xr
• Appium CLI or Appium.app|exe: CLI

NOTE: We have 4 iPhones running separate appium instances for each on this same server (different ports etc…) running in a selenium grid. Unsure if the “reusing previously downloaded application” would potentially use a downloaded file from one of the other appium uses

Link to appium log

https://gist.github.com/bennid/d109f4b0bc1808276241249a91e8265c

Code To Reproduce Issue [ Good To Have ]

Unsure how to reproduce it… it’s a bad app build imo (still researching)… but appium shoudn’t crash in this instance