One bright day the Breakpoint stopped to react. Can someone tale me what happened . By the way, it's happened just in one specific access. All other access applications are OK.
Are the breakpoints still actually there? It's possible to inadvertently clear them by clicking the 'clear all breakpoints' menu option in the Debug menu (or by hitting <Ctrl>+<Shift>+<F9>)
Open your Database window.
Click on TOOLS, STARTUP, select "Us Access Special keys".
Close database window, and reopen it.
Put the breakpoint on VBA and try.