This has happened to me as well. It really, really ticks me off. Here's my question: If a SkyWest employee lists roundtrip and the first leg is on SkyWest (SA0X) and the return leg is on a different United Express carrier (Mesa, etc..), does the SA0X priority still carry over on the "offline" return leg as well? Or, does this anomaly only occur when the subsequent flight is mainline. Either way these occurrences need to be brought to the attention of ALPA and PDR'd immediately. The company claimed this was fixed. This is absolutely ridiculous.