After reboot, string values are empty

Setup, Configuration and Use Beginners
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16

My mapdb in the UI looks like this an d I persist everything:
Screenshot from 2023-12-16 22-14-06

And the code looks like this in the mapdb:

configurations:
  - items:
      - "*"
    strategies:
      - everyChange
      - restoreOnStartup
    filters: []
cronStrategies: []
defaultStrategies: []
thresholdFilters: []
timeFilters: []
equalsFilters: []
includeFilters: []