Width broken when loading GUI with another tab

[Master92]

Whenever the OctoPrint user-interface is loaded from the browser, the Tempsgraph plugin's width is too big so that it doesn't fit into the regular tab space.
Using the Firefox Inspector, the row-fluid and plot-container divs have a size of 588 x 400 Pixels, whereas the enclosed svg-container div measures in at 700 x 400px.

I am using OctoPrint 1.5.1 with Python 3.9 on a Raspberry Pi 3 and with Python 3.8 and Python 2.7.18 on a Windows 10 machine.

[leoheck]

I came to say the same.