Unfortunately supply chains are suffering in every industry. I repair medical equipment. Our vendors are in Switzerland, Germany, Japan, England....pretty much everywhere and they are all experiencing parts delays. I was supposed to get a part back in November and its ETA has been pushed to June. Another problem is parts that were readily available are being saved by the manufacturers for the production line, so spares are severely backordered . The problem is that we are just feeling it now because oem warehouse stock is finally depleted after a year of shut downs worldwide. Manufacturers are not lying when they blame lack of parts and raw materials.