Mu3.7 prints 'To Coda' in wrong position

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Confirmed (on my HP OfficeJet Pro 8620). Please file on my GitHub issue tracker.

Another workaround is to use 3.6.2 for printing...
Or to use the "To CodaSymbol" from the Jumps & Repeates palette('s more entries), which does look a bit different, larger and elliptic, but identical to the actual Coda sign.

I normally always make PDFs when I print. If everything is ok then I can still put it on paper.

But your problem is the “To Coda” sign. I have a slightly different one, but I can't remember where. In any case, it works with this one.
See attachment. Perhaps you can drag this "To Coda" in your palette ...

By the way: it has to be D.S. al Coda and you don't need the Volta2 at the end.

In your score the "To codasymbols" looks like this:

        <Marker>
          <style>Repeat Text Right</style>
          <offset x="-0.501976" y="-1.12154"/>
          <text>To </text>
          <label>coda</label>
          </Marker>
 

Using the corresponding entry from the palette it looks like this:

        <Marker>
          <style>Repeat Text Right</style>
          <text>To <font size="20"></font><sym>coda</sym></text>
          <label>coda</label>
          </Marker>
 

and takes the Musical (Text) Font from the style settings of your score, in this case Emmentaler (Text), rather than some arbitrary unicode glyph from an unknown font, probably FreeSerif.
Using Mscore (which is Emmentaler Text) instead of FreeSerif fixes this, but there the glyph is quite a bit smaller.

I'm not aware of any changes to FreeSerif in 3.7 vs. 3.6.2, so am at a loss to explain why this happens and therefore at a loss to be able to fix it, but in essence just don't use what you did use, but use the 'official' way instead

In your score the "To codasymbols" looks like this:

        <Marker>
          <style>Repeat Text Right</style>
          <offset x="-0.501976" y="-1.12154"/>
          <text>To </text>
          <label>coda</label>
          </Marker>
 

Using the corresponding entry from the palette ot looks like this:

        <Marker>
          <style>Repeat Text Right</style>
          <text>To <font size="20"></font><sym>coda</sym></text>
          <label>coda</label>
          </Marker>
 

and takes the Musical (Text) Font from the style settings of your score, in this case Emmentaler (Text), rather than some arbitrary unicode glyph from an unknown font, probably FreeSerif (it does look 'jazzy' though?)
Using Mscore (which is Emmentaler Text) instead of FreeSerif (or whatever) fixes this, but there the glyph is quite a bit smaller.

I'm not aware of any changes to FreeSerif in 3.7 vs. 3.6.2, so am at a loss to explain why this happens and therefore at a loss to be able to fix it, but in essence just don't use what you did use, rather use the 'official' way instead