ACS 7.4 Comm. preview some PDFs show blank

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Member II

ACS 7.4 Comm. preview some PDFs show blank

Hello everyone.

It's been a while since she's been here. And now trying to experiment with ACS 7.4 community, I'm "playing" with migrating an old ACS 5.2 installation

All perfect. I installed using Docker, and no problems, everything as expected, except for one detail.

Certain PDFs that were displayed correctly in the preview for 5.2 have stopped displaying in 7.4.

No errors are shown, it just shows them blank, and if you try to select the content it can be done without problem. That is, it has content, but everything is shown in white

Any idea what is happening?

Thanks in advance !!!