If the tool is running out of memory during job execution, that can mean that the work is actually exceeding the job limits at the public server you are working at, or that there is some data format or content problem you need to address.
Reference: RNA STARSolo mapping, demultiplexing and gene quantification for single cell RNA-seq (link at ORG)
So, breaking that down:
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Data Format: it sounds like you already checked this part. Good!
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Data Content: Did you run QA steps? You could maybe re-review those quality steps to see if you can learn what might be going on or if you need to adjust parameters with this tool.
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Server Resources: Each server hosts different resources, and distinct computational limits (practical reasons). You can try at a different server to see what happens. UseGalaxy.eu and UseGalaxy.org.au are the most similar to UseGalaxy.org, and both host this tool. It is easy to move data around between servers, and it is totally expected that people work at all of these (one account at each!).
Hopefully this explains what is going on, and we can certainly follow up. No one can really tell of the server resources are the actual problem, since these tools are so computationally demanding, the data and parameters even for smaller data file-size wise can be “demanding”, so trying where there are more resources is the best test. For this tool, I would suggest comparing to UseGalaxy.eu. Then, if it still fails there, you’ll have to look really close at the parameters, and maybe even the QA steps again – something is going on and the tool itself cannot understand/process that specific sample (scientifically).
Let us know how this goes! 