bouym B1up validation trigers in debug mode but not when in normal mode

G'day,

I have added significant customisation to the Activity screen to flesh it out as detailed CRM. There are 4 BOYUM tabs added for quotes, leads, customer visits and complaints.

Each tab has 7-11 UDF

When loading data, I now want to focus on the tab relevant to the record type. EG if its a quote activity then on data load I want it to open on the quote tab by default. 

I have this working like a charm with menu clicks selecting first, last next records etc. But on data load from a yellow arrow or find etc, it won't trigger. 

But it will trigger if I put the UF into debug mode. I've tried dozens of permutations and combinations and get half these combinations triggering the debugger. The code then works. 

I'm triggering the validation from SQL condition. Here is the condition code if the activity in the data load is related to a quote:

IF (SELECT 1 FROM OCLG WHERE CntctType=$[$68.0.0] AND CntctSbjct=$[$35.0.0] AND ClgCode=$[$5.0.0])>0

SELECT 'QUOTE' FOR BROWSE

This validation comes after the tab load and the menu click validation. I have swapped the order and it makes no difference. I have no other tab, form or data load events active.

Cheers

Rohan