Pretranslate fuction does not work anymore in Studio sdl 2019 both with local tms and with ModernMT

Hi,

I've been using SDL TRADOS STUDIO 2019 for a while now. In the past I was able to use the pretranslate function also with MODERNMT AUTOMATED TRANSLATION.

I had this issue before updating and also after update.

Now it does not work anymore.

Still If I translate manually MODERNMT DOES TRANSLATE SEGMENT BY SEGMENT (so modernmt works) but STUDIO won't  pretranslate anymore.

Of course the setting are:

99%

Keep existing translation (because I want it to insert translation only in empty segments but I also tried with Always overwrite and still it does not work anymore)

Apply automated translation...

What can I do? I don't need to pretranslate all the texts everytime but sometimes it is really essential.

Thank you for your help.

Alessandra