Having the same issue
However, the log report doesn't specify anything.
Here's a log report:
Malwarebytes Anti-Malware
www.malwarebytes.orgScan Date: 6/13/2015
Scan Time: 11:19:49 AM
Logfile:
Administrator: Yes
Malware Database: v2015.06.13.04
Rootkit Database: v2015.06.02.01
License: Premium
Malware Protection: Enabled
Malicious Website Protection: Enabled
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 413814
Time Elapsed: 20 min, 35 sec
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled
Processes: 0
(No malicious items detected)
Modules: 0
(No malicious items detected)
Registry Keys: 0
(No malicious items detected)
Registry Values: 0
(No malicious items detected)
Registry Data: 0
(No malicious items detected)
Folders: 0
(No malicious items detected)
Files: 0
(No malicious items detected)
Physical Sectors: 0
(No malicious items detected)
(end)