Tried with style plastique - same result. QPixmap log output is not from my code but from Qt Widgetset, I'm not using Qt API directly, I'm just assigning TLabel.Caption := Title in thread safe Application.QueueAsyncCall. Tried also prepare demo but when copy pasted to the empty project, everything is working fine. Different stack or something? I still don't understand why I get this error even when I comment Application.QueueAsyncCall line in bass callback SyncMetaProc. It is on top place where external Bass callback function call my FPC routine. It worked fine for several months, stopped after svn update and Lazarus rebuild. Weird
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