Imported variable works but can't be further used

[Solu9]

I recently imported a system into another map.
The system works fine in the new map so that's all hunkydory.
The issue is when I want to add to this imported system within the new map. I can't pick some of the variables that has been imported.
When looking at the variable manager I can see fx. an integer variable called integer_C.
It shows:
Name: integer_C
Type: Integer
Initial Value: - None - (where it would normally say 0)

If I click this variable the little edit window pops up. The name is shown but the type drop-down window is blank.
If I change it to "integer" which it is and click "ok", everywhere it is used becomes an invalid field and has to be re-coded. I can, however, use it again.

Is there any way I can make it usable again without having to re-write the code where it is being used?


For the record.
I have checked the "automatically create unknown variables while pasting trigger data".

 

[IcemanBo]

Think also had once this problem in past. (also with an integer)

Delete the system and also delete the integer variable. Then manually create this one integer variable in variable editor. (ensure it works now)

Then again import the system, and it should work I guess.