I've just found out that our printing with Lazarus 1.4.2 on 64 bit Linux doesn't work, e.g., it always produces a nearly empty PDF file (2.6 kB) with CUPS PDF printer and an empty page on a real printer with a message stating

Error Name: undefined
Offending Command: -nan
Operand Stack:
53.641

It works on 32 bit Linux (and Mac) and it works with Lazarus 1.2.6, which we used before. Printing uses Fastreport 4.15.13. and there's no problem with the preview, it's just the real printing what fails. There's no exception, seemingly just garbage gets produced somewhere. All in all, it looks like a pretty tough problem, so I wonder if someone could give me some good advice how to approach it.
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