The Rolls-Royce (LSE:RR) share price is up 35% since the start of the year. But the last month hasn’t been so impressive. As a number of issues have emerged for the business, the stock’s fallen by 3%. I think this is a buying opportunity for the long term that investors should seriously consider. Rolls-Royce has started to come up against some issues. These aren’t major enough to cause the stock to fall significantly, but they’re sufficiently important to stall its momentum. One is the company’s bid to support the UK’s nuclear power expansion. Delays to the government’s decision about who to partner with have forced the business to scale back its ambitions. Another is the fact workers at Rolls-Royce’s nuclear submarine programme are taking industrial action. The dispute is over pay and resolving the issue could cause costs for the company to rise. Neither of these is positive news and investors will want to keep an eye on the situation. The long-term plan for the business looks like it’s on track though. Analysts believe the company’s on track to pay a dividend this year. And there’s also been positive news for the underlying business. The commercial aerospace part of the...