Could just be I ran out of space or need to set up to which folder songs will sync, but to be sure, this is the copy-error-message recieved:
MusicBee v2.5.5804.26036 (Win6.3), 8 Aug 2017 13:27:
System.IO.FileNotFoundException: The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
at PortableDeviceApiLib.IPortableDeviceContent.EnumObjects(UInt32 dwFlags, String pszParentObjectID, IPortableDeviceValues pFilter, IEnumPortableDeviceObjectIDs& ppenum)
at #=qV6_FCwKoVmGW12gyKhSEhFkTph6uki4J7F3lYhDLD3$wG1i7hD4FRoGm$AwZ$cP5.#=qF1DQ5sSG9cbqCMam8L_22A==(#=qHzWqmCsvleiiDtM8zDajm7xM8YHwfEvl15eUyeOMwO0= #=q02zBsllVtOcnqDAoCJFFoQ==, #=qWhko8YK$CgBsJUsBjQBkL5jMMWGe6Rd$5mAlu6NN5RZTx3nlZNNxzCbmQmLMEt1o #=quuvQi2wLgINwIpfP7COtIA==, Boolean #=qrzluaEgize1guaELm3Xo9Hr1oLdLR09_PpSaXWk5THg=, List`1 #=qYrlN2r2PTCCfddP5323Bwg==)
at #=qV6_FCwKoVmGW12gyKhSEhFkTph6uki4J7F3lYhDLD3$wG1i7hD4FRoGm$AwZ$cP5.#=qF1DQ5sSG9cbqCMam8L_22A==(#=qHzWqmCsvleiiDtM8zDajm7xM8YHwfEvl15eUyeOMwO0= #=q02zBsllVtOcnqDAoCJFFoQ==, #=qWhko8YK$CgBsJUsBjQBkL5jMMWGe6Rd$5mAlu6NN5RZTx3nlZNNxzCbmQmLMEt1o #=quuvQi2wLgINwIpfP7COtIA==, Boolean #=qrzluaEgize1guaELm3Xo9Hr1oLdLR09_PpSaXWk5THg=, List`1 #=qYrlN2r2PTCCfddP5323Bwg==)
at #=qV6_FCwKoVmGW12gyKhSEhFkTph6uki4J7F3lYhDLD3$wG1i7hD4FRoGm$AwZ$cP5.#=qF1DQ5sSG9cbqCMam8L_22A==(#=qHzWqmCsvleiiDtM8zDajm7xM8YHwfEvl15eUyeOMwO0= #=q02zBsllVtOcnqDAoCJFFoQ==, #=qWhko8YK$CgBsJUsBjQBkL5jMMWGe6Rd$5mAlu6NN5RZTx3nlZNNxzCbmQmLMEt1o #=quuvQi2wLgINwIpfP7COtIA==, Boolean #=qrzluaEgize1guaELm3Xo9Hr1oLdLR09_PpSaXWk5THg=, List`1 #=qYrlN2r2PTCCfddP5323Bwg==)
at #=qV6_FCwKoVmGW12gyKhSEhFkTph6uki4J7F3lYhDLD3$wG1i7hD4FRoGm$AwZ$cP5.#=qsCBF3AUxo0iVYAUrU2pizw==(#=qHzWqmCsvleiiDtM8zDajm7xM8YHwfEvl15eUyeOMwO0= #=qDpNfwG5IIyxJBLhJMy$45A==, #=qWhko8YK$CgBsJUsBjQBkL5jMMWGe6Rd$5mAlu6NN5RZTx3nlZNNxzCbmQmLMEt1o #=qLrwozdqZAoYMlLJNrVnH_A==, Boolean #=q7MCp0sIqb1a7bbr_0vygv0JZx$O6WUM$DNP1lasZ$Kg=)
at #=qcz9L0WMkUs6BPGa87HhhLItRXC0ryWsZf2rbUtcUiAqFPzZVEpRjwPo5Js4FADmQ.#=qP0kPCYaqBp8IQXJSi8firA==(Boolean #=qnBaD7gU2Xuri52_RcyxXj3FlRVzmJqgK_y1WqnOB2Pg=)
at #=qDUUt63mB20zmKpLtSKy0BYk84icqCcAlivwoxG5Mt24=.#=qJBE0dgGMMQ_EVS2K5AUJcA==(Boolean #=qlk5OwZCn8ZVs6wLzP5JjeQ==, Boolean #=qUifaspbyVaaanBFXRSNiNA==, Dictionary`2 #=qqEnELVeVzLjA3_BR3Y8HGRyS_hz1fYtRkFfczYRNuxw=, List`1 #=q_3M7IuxJGNuTTRwCNvxYP6D0R$ROTHnwGwXGhnIifrA=, Object #=qmiKwKVRlVIAOO_EyWtBta2hjmszLun$1uGMcJwyLhwk=)
at #=qDUUt63mB20zmKpLtSKy0BYk84icqCcAlivwoxG5Mt24=.#=qO2JNneU7yROz3KgbwRjcEA==(Boolean #=quFY_9cD58x8coSVhzSUniA==, #=qQCgh9bnwNJYU_R4EXJAZTgFss6Ed5f8GP6Bk_5eTtD18xz_cy9jBFR6Mp9z1RnXE #=qxbKJLf06osV2JVxqvJUDAA==, Object #=qkJ742aC_Za1fLRMp5uI2ESvVgpcBphkA6LSvcB5CqVE=)
at #=qDUUt63mB20zmKpLtSKy0BYk84icqCcAlivwoxG5Mt24=.#=qFGplQ7gQIzWqKFdOEMxWxg==(Object #=qIYYVCZZBSJ1If0C_7pJsbn1Z8SqL_E1AE_VLofJv9mE=)
at #=qnpAuPCh71tXNlwhQ116ZN$NfIDZAJegJfqVuksxycHU=.#=q2xLT68_oIAUoKc5OxzNIoKlnmtxBclsYIEsNGGemyRk=(Object #=qgk8BCIMqxdWbbhr3pDKYmQ==)