Access Chart Size Changed (Office 365)

Question

I have a multi axis chart in a fairly complex Access Report. I built the report in 2020 and it worked well (see image of chart below) but now the chart has been shrunk vertically and is not usable.

I have seen references to Display Scaling Settings (not 100%) on pc being an issue, but I checked and my display scaling setting is 100%. I am operating a Windows 10 laptop with regular updates.

My MS office license is Microsoft 365 and my Office 365 apps have been re-installed NUMEROUS times in 2021 by MS Support in order to address a different MS Excel issue.

Here is the way the chart looked previously:

This is how the chart looks now:

I guess I have two questions:

1. What happened/why did this happen? (I did not edit the chart)
2. What can I do to fix this?

Thanks

DGP