During exploratory tests I noticed that when I'm on the "Make Issue" page for Essential Meds, after a minute, I get a Gateway_timeout error.
Log in as administrator and go to Stock Management > Issue.
Click "Make Issue" next to Essential Meds and start adding some products.
Remove one or two products and add again one.
Getaway Timeout error appears.
Return to Stock Management > Issue screen, and click again the "Make Issue" button next to EM program.
After about a minute, an error occurs and you cannot enter the Make Issue screen.
The error shouldn't occur at all.
NOTE: I also noticed that the error sometimes appears at the beginning before entering the page.