Signal still coming through after record disarm

Hi guys,



after updating to PT 10.3.9 on our Mac (OS 10.8.5) we experience the following error.



Our preferences are set to disable input after record disarm.

When we disarm the record button, the input button distinguishes as usual, but the signal is still coming through.

Only record rearming and then disarming stops the signal coming through.



Anybody experiencing the same?



Thanks for your help,

Timothy Davies