CAPL browser shows that the .can file is write protected while it is not and keeps toggling, CPU performance reach 100%

The problem is when I open the CAPL browser, the CPU load increases to 99~100%, and the .can file I am editing can't be saved, and I keep getting the message "file is protected and can't be saved". This happened on multiple machines with different CANoe versions. 
I tested on these versions: 
8.0.36
8.0.71
8.0.93
8.1.60
Randomly the icon of the "write protected" appears beside the file name in the file tab inside the CAPL browser, if I could press the save button while it is not appearing the file is saved, other wise I get the error message. The memory usage is also increases too much and then the browser stop responding.
Do any body had the same issue before? any advice?
Operating system: Windows 7 Ultimate 64
AntiVirus installed:  McAfee

Hi Allaithy,
Can you clarify how is this issue related to NI CAN products?
Anyway, here are some things to try:
Is this the file on a network? Do you have administrator privileges to this network?
Is file set to Read-only?
Miro T.

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