Applocker Win11 24H2

Anyone else having any strange issues with Applocker on 24H2?

Our exam laptops were all recently moved from Win 10 22H2 > Win 11 24H2 & we keep noticing that on start-up we get the error dialog box. We can close this dialog box & it does not appear again.

Checking event viewer, nothing seems to be being blocked in any of the sections (exe, msi, script..)

Our exam user accounts do also have the policy configured " Run only specified windows applications " which could be playing a part? But you would think this would present the different error dialog box