Hi, I observe a strange behaviour (in Pharo-1.4-14557-one-click.app) while debugging the following code. [ | a | self halt. a := (1 == 1). a ifTrue: [ ^ 'A'] . Transcript crShow: 'foo'. ^ 'B' ] ensure: [ Transcript crShow: 'bar'. ] If I comment out the halt statement and if I inspect the result of the attached code, the 'A' is returned and there is a 'bar' text in the transcript. If I inspect the result of the attached code (with halt enabled) and if I click step over in a debugger, I can see, that the statement ^ 'A' does NOT return, the program flow continues on the next line and the 'foo' is shown in the transcript. Now, I can click proceed and the 'B' is returned as a result. I tried the same process in Pharo-1.3-13328-OneClick.app and I got 'A' result in both cases. I tried on this system: System Version: Mac OS X 10.7.3 (11D2001) Kernel Version: Darwin 11.3.0 Regards, Jan -- View this message in context: http://forum.world.st/Debugging-block-with-ensure-block-tp4641279.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.