My post yesterday described the issues I was having getting a fairly simple WE app running on my Debian based web server. The issue appears to have been a Print statement in the App.Open event. Technically I was calling a method that did both a print and logged it to a local file as well, but the end result is that the print statement itself was the issue.
Once I got rid of the print statement, the app ran fine. Why this was causing an issue I have no idea as I was doing pretty much the same thing in R1 apps. Using the print statement elsewhere in the app is also no problem so this bug appears to manifest itself only in the app.open event.
The feedback ID, in case you are interested is <feedback://showreport?report_id=17388>
Hopefully this saves you a little bit of time.