I'm not seeing this in my tests. Perhaps it is particular to a specific Word document you are working with?

Can you post an example document, attached as a zip file, that I can test with?

Please try JCE Pro 2.7.15 Beta 5 - https://www.joomlacontenteditor.net/downloads/editor/pro/development

I'm not seeing that in my tests. Please send me a login - https://www.joomlacontenteditor.net/contact/site-login

The problem here is that Word creates such a lot of style junk in tables, when it is copied to the clipboard as HTML, that it is very difficult to clean up. For example, the 5 column 2 row table, after some initial clean but before table processing, results in:

<table style="width: 624px; border-collapse: collapse; border: none;">
	<tbody>
		<tr style="height: 58px;">
			<td style="width: 125px; border: 1pt solid windowtext; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: 1pt solid windowtext; border-right: 1pt solid windowtext; border-bottom: 1pt solid windowtext; border-left: none; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: 1pt solid windowtext; border-right: 1pt solid windowtext; border-bottom: 1pt solid windowtext; border-left: none; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: 1pt solid windowtext; border-right: 1pt solid windowtext; border-bottom: 1pt solid windowtext; border-left: none; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: 1pt solid windowtext; border-right: 1pt solid windowtext; border-bottom: 1pt solid windowtext; border-left: none; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
		</tr>
		<tr style="height: 58px;">
			<td style="width: 125px; border-right: 1pt solid windowtext; border-bottom: 1pt solid windowtext; border-left: 1pt solid windowtext; border-top: none; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: none; border-left: none; border-bottom: 1pt solid windowtext; border-right: 1pt solid windowtext; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: none; border-left: none; border-bottom: 1pt solid windowtext; border-right: 1pt solid windowtext; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: none; border-left: none; border-bottom: 1pt solid windowtext; border-right: 1pt solid windowtext; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
			<td style="width: 125px; border-top: none; border-left: none; border-bottom: 1pt solid windowtext; border-right: 1pt solid windowtext; padding: 0cm 5.4pt; height: 58px;">
				<p> </p>
			</td>
		</tr>
	</tbody>
</table>

As you can see the table cell borders are a mix of different styles, which makes conversion to a consistent style quite difficult.

I am seeing the same cell border issue, although there are differences between Firefox and Chrome.

I am not seeing the doubled content issue on your site or on my test site, in either Firefox or Chrome.

I will continue working on this, but here is my suggestion to keep you working, and guarantee clean tables with borders:

1. In Editor Profiles -> Plugin Parameters -> Clipboard, add border-collapse,border to the Styles to remove field, eg:



2. Copy and paste the table as before. It should be pasted in without solid borders, only showing a dashed border (this is a system style showing an outline of the table)

3. Click somewhere in the table, and click on the Insert A Table button in the toolbar. In the dialog, set Border to 1, click Update.

A couple of css tweaks, add these to the templates custom.css file and the jce.css file:

table[border="1"] {
    border-collapse: collapse;
    border-spacing: inherit;
}

table[border="1"] td {
    border: 1px solid #000;
}

I think I have managed to fix this in JCE Pro 2.7.15 Beta 6 - https://www.joomlacontenteditor.net/downloads/editor/pro/development

However, the alternative method I proposed is actually a better way to deal with this, as it results in cleaner HTML in the article, and gives you more control over the table borders via the css in the template. For example, changing the colour of the table border in all similar tables across the site (those with the border="1" attribute) is easily done by altering the border colour in the template stylesheet.