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KevinH · 08-21-2024, 07:32 PM

You may have an anti-virus program that is interfering with the QWebEngineProcess application that runs behind the scenes.

You may have a firewall setting that interferes with even local sockets to prevent inter-process communications.

You may have an unsupported graphics driver. Have you tried updating to the very latest driver for your graphics card?

Fire up Sigil and load the Users Guide and navigate to any page. Even if Preview is blank, try hitting the Inspector button on the Preview Toolbar. Does the Inspector open? Can you see anything? If so, look at the source code via Preview's Inspector, Does it look similar to what CodeView is showing (after uncollapsing the code whereneeded).

It you see it just for a flash and it goes away, then something is interfering with Qt's QWebEngine, most probably really misguided anti-virus software.

Perhaps your aging processor does not support AVX or other advanced registers required?

08-21-2024, 07:32 PM	#5
KevinH Sigil Developer Posts: 8,884 Karma: 6120478 Join Date: Nov 2009 Device: many	You may have an anti-virus program that is interfering with the QWebEngineProcess application that runs behind the scenes. You may have a firewall setting that interferes with even local sockets to prevent inter-process communications. You may have an unsupported graphics driver. Have you tried updating to the very latest driver for your graphics card? Fire up Sigil and load the Users Guide and navigate to any page. Even if Preview is blank, try hitting the Inspector button on the Preview Toolbar. Does the Inspector open? Can you see anything? If so, look at the source code via Preview's Inspector, Does it look similar to what CodeView is showing (after uncollapsing the code whereneeded). It you see it just for a flash and it goes away, then something is interfering with Qt's QWebEngine, most probably really misguided anti-virus software. Perhaps your aging processor does not support AVX or other advanced registers required? Last edited by KevinH; 08-21-2024 at 07:38 PM.