Synaptic wont launch after installing software from the software boutique

[David Collins]

After a fresh installation of Ubuntu Mate 22.04 I installed software from the software boutique. After the software installation was complete I closed the welcome screen. I then went to launch the Synaptics package manager via the menu, it requested my elevated password, takes the password successfully and never launches. Tried multiple times to no avail. Only a reboot would solve the issue. Once rebooted the Synaptics package manager selected from the menu would launch

[David Collins (torkamata)]

Also from the software boutique the packages for Blender and steam error and report a size mismatch and refers to a possible mirror sync issue.

[David Collins (torkamata)]

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/libg/libgcrypt20/libgcrypt20_1.9.4-3ubuntu3_i386.deb
  File has unexpected size (23738 != 492736). Mirror sync in progress? [IP: 91.189.91.38 80]
Hashes of expected file:
 - SHA512:feffe6c895beb92099d09b5522fc972b9beabf93bf7854a5b18e3ed271ce313f6435235afafa51e240a0bc1f34c4bf5877ac773794404dd2bb900cc6da31c8e7
 - SHA256:8050b21ba350a2d6d2655b6f83c7750f6f8003c3634e18f782905160891c1557
 - SHA1:42aca8bf2418ab69ce2016334397184fe9fe7dac [weak]
 - MD5Sum:3d7a6f2aacf4ce7e327d66bcccfa0664 [weak]
 - Filesize:492736 [weak]

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/libb/libbsd/libbsd0_0.11.5-1_i386.deb
  File has unexpected size (23738 != 48304). Mirror sync in progress? [IP: 91.189.91.39 80]
Hashes of expected file:
 - SHA512:a158726cd2c48f76b38505c49c426b7c5631890c517c9c12a2d10b85e0d636a36bc2c813dd4b0320bac159d2bd61c6baf56551f389e3efc57d4844f0e46a73a9
 - SHA256:e721bd7af27893fe4ebff39fce5678cd4f8dd75e0d6bec010e922125a99e9fbc
 - SHA1:176b3f3afaecfabc5a1c8895ca1c0823310e5a1a [weak]
 - MD5Sum:0861a7c148c3baa63bec9f4e047e4010 [weak]
 - Filesize:48304 [weak]

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/libg/libglvnd/libglx0_1.4.0-1_i386.deb
  File has unexpected size (5960 != 46124). Mirror sync in progress? [IP: 91.189.91.39 80]
Hashes of expected file:
 - SHA512:2642c9882a44d0612f0ebd2bfa6733d5b6ad2b0f94676849769117fb21d31d55a5e30c4e20c18685dc04fe1a96d5fd506f85d9c666192e0f611bb967f766b0c0
 - SHA256:9bde9c4a4891385acf089ca59f512fac2f7af12e95ab8554b1d1fc0a46640e61
 - SHA1:3a2e629f8adb9938b03e05a346089d94ca2dd797 [weak]
 - MD5Sum:684413cbeb92c266bfc6b7fe80977479 [weak]
 - Filesize:46124 [weak]

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/libg/libglvnd/libgl1_1.4.0-1_i386.deb
  File has unexpected size (5958 != 104098). Mirror sync in progress? [IP: 91.189.91.39 80]
Hashes of expected file:
 - SHA512:b2a6cfc422e64ae083a10b1b211376e761e12921248135e0729ff8fab333d8131e7fbe7d971495e3548d06463deec34de8443e63a803fc5f3da7f0d1e598beae
 - SHA256:d73015cfe713906c3c24baea1b2eec59d138dc89f877e5a4e38406dc526e17d4
 - SHA1:4c9797e8ccea16f1c16cb72f2a4f9a9a80b1e27f [weak]
 - MD5Sum:62997f738efa43c3ab09a19bcd1b9552 [weak]
 - Filesize:104098 [weak]

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/libx/libxi/libxi6_1.8-1build1_i386.deb
  File has unexpected size (10538 != 35566). Mirror sync in progress? [IP: 91.189.91.39 80]
Hashes of expected file:
 - SHA512:b5c278c2803caf1a5f5eefdf2c6db8d528ba60c7ce4de1b0da96ee6b29f025b3fb93d2287bed05d4f2bbf2fdd63286b3883a64c57daf9d589274cee59396b5ca
 - SHA256:82161c04d8c55a3e0a54ddc90edad49f1b1d6690ff8d5778dd42b9bfb1a7c6b7
 - SHA1:eb48a0e256037b4ef548425d62d9350df9ec0650 [weak]
 - MD5Sum:4b1ad683a434ac4e82e8844515b8e419 [weak]
 - Filesize:35566 [weak]

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl3_3.0.2-0ubuntu1_i386.deb
  File has unexpected size (35566 != 1939836). Mirror sync in progress? [IP: 91.189.91.38 80]
Hashes of expected file:
 - SHA512:83254e07bcff656d7a5f20b742c36fa9f193b69c678ca3954ba24cd731521433b890858c272762989904f21a011c6e6ff23981e17...

[madigal (osse7)]

Check that the appropriate 'polkit' package is also installed for your flavor:
https://itsubuntu.com/install-synaptic-package-manager-ubuntu/