anna_plc nailed the grease grade issue. Temperature-dependent viscosity is the #1 cause of centralized lube failures that I see, and most shops never think about it because "we've always used this grease."
I'll add the oil circulation side since that's the other half of the system. The oil filter on the return line is the one everyone forgets. The main pressure filter gets changed because there's a gauge right there staring at you. The return filter sits behind the reservoir where nobody looks, and when it clogs, the oil bypasses through the relief valve and dumps unfiltered oil back into the tank. Over 6 months you end up with contaminated oil circulating through your bearings. We put a differential pressure switch on the return filter ? $80 part, wired to a warning light on the HMI. Pays for itself the first time it catches a clogged filter.
For the grease side: if you're getting repeated blockages in the same distribution line, the problem might be the line routing, not the grease. I've seen lines routed too close to the press frame where they pick up vibration and the grease separates ? the oil bleeds out and you're left with a plug of thickener. Re-route the line with a smooth radius (no sharp bends) and add a small accumulator near the distribution block to dampen pressure spikes from the pump.
Monitoring tip: put a cycle counter on the lube pump and log it. If the pump is cycling more frequently than normal, something downstream is leaking or a line is cracked. Caught a cracked fitting on our Aida this way ? pump cycle rate went from 12/hour to 20/hour over two weeks. Found grease pooling inside the frame where nobody could see it.