Blurred fonts in LO Calc

Data (text, numbers, dates) entered into cells in LO Calc are blurred on macOS 10.14.6 (Mojave) on a 2014 MacBook Pro 15" Retina. The last version of LO I used that did not have this problem is

I have tried many suggestions, including modifying the plist file in the app and clearing out caches but to no avail. So for now I am stuck with

Is this a known issue? Are there any plans for fixing this?