Fix crash on ANR

[sevenreup]

IMPORTANT: Where possible all PRs must be linked to a Github issue

Fixes #[issue number]

Checklist

• I have written Unit tests for any new feature(s) and edge cases for bug fixes
• I have added any strings visible on UI components to the strings.xml file
• I have updated the CHANGELOG.md file for any notable changes to the codebase
• I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the project's style guide
• I have built and run the fhircore app to verify my change fixes the issue and/or does not break the app

[codecov]

Codecov Report

Merging #2071 (de65de0) into mwcore-dev (d97874b) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             mwcore-dev    #2071   +/-   ##
=============================================
  Coverage         64.66%   64.66%           
+ Complexity          829      828    -1     
=============================================
  Files               143      143           
  Lines              5213     5213           
  Branches            862      862           
=============================================
  Hits               3371     3371           
  Misses             1330     1330           
  Partials            512      512           

Flag	Coverage Δ
engine	64.66% <ø> (ø)

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