JPR Support

Posted: **Sat Jan 17, 2026 9:45 pm**

Application crashes everytime i send only one midi note.

Error report:
Version: 5.7.2
Function: frmMain.TimerMIDI_Timer
Error Number: 5
Error Description: Invalid procedure call or argument
Last known line number: 15
Operating System: Microsoft Windows 10 Pro - Version: 10.0.19045

Posted: **Mon Jan 19, 2026 5:54 am**

Hi

Which MIDI controller are you using when you get this error ?

JPR Support

5.7.2:frmMain.TimerMIDI_Timer:Invalid procedure call or argument at line 15

5.7.2:frmMain.TimerMIDI_Timer:Invalid procedure call or argument at line 15

Re: 5.7.2:frmMain.TimerMIDI_Timer:Invalid procedure call or argument at line 15