texts & leaders visibility issues in PDFs

I am using the AECOsim V8i version.

In the sheet model, I have referenced the architectural & MEPF plan as a saved view. There are annotations (texts & leaders) as well.

Usually, the current model will be at the bottom in the update sequence setting. So that in the sheet model, text & leaders will come to the front and PDF will also be created accordingly.

Here is the new/strange issue. When I set the current model at the top in the update sequence setting, in the sheet model, text & leaders go back but in PDF it comes properly and visible.

Instead, If I set the current model at the bottom in the update sequence setting, in the sheet model, text & leaders come front but in PDF they are invisible. This problem exists in several files.

How to fix this?