"Debugging mode failed" Popup on the bottom right corner

  • *Just to point out this was working before, nothing has changed before problem started.

The issue is, every time i try to save + read + print from a saved file there is an error “Debugging mode failed” is popping from the bottom. The buttons for breaking point are not appearing in blueprints. and watch values are not showing anything. not even 0.

It is in one frame:

  1. Clearing an array of constructs on the savedGame class.
  2. An array of slots will access its object to populate the newaly cleaned array of constructs on the savedGame file. Using for each loop it will use an array add node on every valid slot, to save data and populate a new construct item with an array add node. so they are linked in index, i triple - checked that multiple times careful, it was working for weeks already)
  3. reading a variable from the construct from the array from the saved file . and that will :
    A. Gives an error im trying to access an index that does not exist in the array. (but it does, it was working for many days before).
    B. “Debugging mode failed”
    C. “Debugging mode failed” will happen only in this level but with the removal of this process from the save file button (doing other functions that does not have an issue but debug mode will still fail)

its hard to find some common denominator about the cause of the issue. considering it was working before, exactly the same.

I tried (but dident fixed it)

  1. Restart unreal and pc
  2. manually delete the save file and change its name / use a variable for the name slot

Sorry for the messy post, i write it the way it happen, i know it does not make much sense.

Mac m3 max
unreal 5.4.4
OS 15.5
Project mobile, scalability graphics, blueprints oriented

Any guidelines about how to debug the debugger ?

Hey there @Userofunreal! Is this inside of a widget blueprint or a regular BP? There have been bug reports of widget BPs being unable to use breakpoints consistently.

Is the Debugging mode failed consistent whenever iterating that array? Can other BPs access the full array?

1 Like

Thank you for reply

The debug still fails even after fixing all other issues : (

I prefer not to migrate it all to a new scene it will be a lot of extra work