Incompatible with Webform < 7.x-4.6 due to webform_get_conditional_sorter() call

Do you mean that you upgraded webform_validation? Please provide steps to reproduce the problem. Is there any PHP error? Normally, a white screen means there is a PHP error and they are set to be hidden.

I'm having the same problem after upgrading. It looks like webform_get_conditional_sorter() is getting called on line 163, and that function isn't defined in Webform 3.x.

webform_get_conditional_sorter() has been part of webform_validation since 7.x-1.10-rc1 (commit 98757f4). Webform 3.x is no longer supported.

@paolo888: What version of Webform are you using?

Sorry, I see the problem. There is capabilities checking which made things compatible with both 3.x and 4.x. Commit be7a712 moved the call to webform_get_conditional_sorter() outside of this check, thus breaking 3.x compatibility in 1.12-rc1.

I suggest staying on 7.x-1.11. I may remove the 3.x compatibility altogether.

Please give it a try in Webform 3.x and confirm here that it is working for you.

Works for me in 3.x, thank you!

This fixes a regression caused by #2630448: Ensure executeConditionals() has been called before evaluating WebformConditionals::componentVisibility.

Patch worked on 3.25 for me as well -- thanks, Liam!