Screen not getting refreshed properly

[mda7]

Environment:-

• Latest WebMSX (6.0).
• Brave browser (Latest [Version 1.64.116 Chromium: 123.0.6312.105 (Official Build) (64-bit)]).
• Chrome browser (Latest Version 123.0.6312.86 (Official Build) (64-bit) ).
• Game:- Dead of the Brain - Day of the Living Dead. (See screenshot )
• 

Steps to repro:-

• Either click on the "Run" button next to the disk1 link (In the screenshot above), or In WebMSX, load the first disk of the game, into floppy drive A.
• Select "New Game". Press space bar.

Result:-
Text from previous screen is still showing up along side the new text on screen.
Press Space Bar to progress further, and you'll see the same happening.

Tested the same game files on OpenMSX, and there were no issues there.
Please see two attached screenshot.