T2S3 minor bug

Just came across a minor bug in the program,

I had place a question mark on line 450 of the T2S3 to ensure that I checked the number. It worked as expected

I was happy with the amount and figured the quickest way to clear the question mark was to key in the amount again which worked for line 450

But not the other two areas

Work around was to add the question mark again and then click again with the question mark enabled to clear the three