For a new transaction in 7.5.3 I selected an account (origin or target) and the dropdown looked like this:
-category type A
-category A
-account A
-account B
-category B
-account C
-account D
-category type B
etc...
In 7.5.4 the dropdown looks like this:
---
-account A
-account B
-account C
-account D
---
etc.
Means that the categories seem to be no longer present in the new version.
greetings