I'm seeing the following distorted text when I use Calculate Again in New Aircraft.
I go to Aircraft > New Aircraft
I scroll down to Vickers VC.1 Viking 1B and select it
I Negotiate to buy/lease aircraft
I select 1 aircraft, Operational Lease, 5 years, 2x Bristol Hercules 634, Standard 360 NM range, Factory Default seats then Continue
I change the lease to 10 years, then click the Calculate Again icon
The screen then displays with overlapping text.