Just happend to me I F11 it. Was in a fight had demasted one of the other Surpris Mast and had little to no damage to me. BOMB I get DCed. I was turning so I guess it keep turning. Got back into game and found out I'm stuck in irons with almost all my mast gone and than figure OK I gotten out of worse. Go to punch the sail repair and bang this is what I get. ALL MY REPAIRS ARE MISSING. I had 21 Hull Repairs and over 30 something Rig Repairs on my ship. I keep this for battles close to Mort so I can keep my speed up. I used one rig repair early in battle when we where exchanged chain shots but I should still have enough for two more chain repairs. Now he's got me dead in water and going to sink/capture me cause of your broken game. Gone all mods, cannons and hard work. thanks devs. At least with repairs I would of had a chance to maybe get back into the fight and turn the tables.
https://steamuserimages-a.akamaihd.net/ugc/838081272094691447/E4C4C1817CEF47D7D9995570CF219E4C772F600A/
GB player confirmed I still had 20ish Hull repairs and 13 sails repair in cargo. He said he will add a screen shot from his side.