[Tip] Press F5 when adding an new entry if the OK button is missing
I want to give a HUGE shoutout to Gabriel from support who helped me this today.
Not having the OK button was driving me insane when I tried to make a new entry.
2021-03-16_08h25_53.jpg
Hello,
Thank you for mentioning the workaround for this issue The Ghost!
I wanted to add, for other users who might be experiencing this issue, that our engineering team is currently investigating this behavior to solve it. It is tied to the option "Disable display scaling on high DPI settings" option found under File > Options > User Interface > Advanced, and disabling this option can also be a workaround while we are working on a fix.
When a fix is found and implemented for this issue, we will make sure to update this tread to notify everyone!
Best regards,
Gabriel Degrandpré
Hi Gabriel,
Here is a picture of where the option is located. 
2021-03-17_08h43_36.jpg