Check integrity shows non UTF error even after both to UTF conversion steps

[funnym0nk3y]

JabRef version

Other (please describe below)

Operating system

Windows

Details on version and operating system

5.4

Checked with the latest development build

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

1. Load bib-file
2. Check integrity
3. Choose one entry
4. Convert HTML to Unicode via right click
5. Convert LaTeX to Unicode via right click
6. Save file
7. Check integrity again

Appendix

bib entry

@Book{Winter15,
  author    = {Winter, Stefan},
  date      = {2014-11-20},
  title     = {Grundzüge der Spieltheorie},
  doi       = {10.1007/978-3-662-44422-1},
  isbn      = {978-3-662-44422-1},
  pagetotal = {275},
  publisher = {Springer-Verlag GmbH},
  url       = {https://www.ebook.de/de/product/25604327/stefan_winter_grundzuege_der_spieltheorie.html},
  ean       = {9783662444221},
  file      = {:Winter15 - Grundzüge Der Spieltheorie.pdf:PDF},
  year      = {2015},
}

[Siedlerchr]

Thanks for your report, seems like a duplicate of #8022 and only happens on windows

[funnym0nk3y]

Okay, seemed new to me. Closing this...