I started a job (and almost finished) in ver13. Opened it in 15 and all seemed to go well-worked on it for several hours. However, when trying to open a layout AC crashes. This doesn't happen with plan layouts-only sections & elevations. Any thoughts/ideas?
AC19(9001), 27" iMac i7, 12 gb ram, ATI Radeon HD 4850 512mb, OS 10.12.6
